https://www.khanacademy.org/math/cc-fourth-grade-math/comparing-fractions-and-equivalent-fractions/imp-common-denominators/a/common-denominators-review 2021-05-18T23:20:45Z Common denominators review Review finding common denominators, and try some practice problems. article https://www.khanacademy.org/math/cc-fourth-grade-math/imp-fractions-2/imp-mixed-numbers/v/changing-a-mixed-number-to-an-improper-fraction 2021-05-18T23:20:43Z Writing mixed numbers as improper fractions Sal rewrites 5 1/4 as an improper fraction. Sal Khan video https://cdn.kastatic.org/googleusercontent/ZT_UbUpbg05jWzI6Sx01_L8dK5tMCi5FI7nD4_T2JWUw58PlsFVGwokekwxj3WYIiDGBnar5EjdbFYMM3gPakoFj Writing mixed numbers as improper fractions Sal rewrites 5 1/4 as an improper fraction. https://cdn.kastatic.org/ka-youtube-converted/xkg7370cpjs.mp4/xkg7370cpjs.mp4 403 Addition and subtraction of similar fractions, including mixed numbers https://www.khanacademy.org/math/cc-fourth-grade-math/imp-fractions-2/imp-mixed-numbers/v/changing-an-improper-fraction-to-a-mixed-number 2021-05-18T23:20:43Z Writing improper fractions as mixed numbers Sal rewrite 7/4 as a mixed number. Sal Khan video https://cdn.kastatic.org/googleusercontent/Tm0p-mwUO1C2houBvbbOoINReXGfu7NWBFgF2Is3FNxireKAMhPyw2RcAfaQGdS0hH03Exv8vJfjse59lB2ng6r3 Writing improper fractions as mixed numbers Sal rewrite 7/4 as a mixed number. https://cdn.kastatic.org/ka-youtube-converted/8JyPzTeA_8w.mp4/8JyPzTeA_8w.mp4 242 Addition and subtraction of similar fractions, including mixed numbers https://www.khanacademy.org/math/cc-fourth-grade-math/imp-fractions-2/imp-mixed-numbers/e/converting_mixed_numbers_and_improper_fractions 2023-11-26T23:13:37.821958878Z Write mixed numbers and improper fractions Practice writing a fraction as a mixed number and vice versa. Omar Rizwan exercise https://www.khanacademy.org/math/cc-fourth-grade-math/imp-fractions-2/imp-mixed-numbers/a/mixed-numbers-and-improper-fractions-review 2025-01-03T18:43:44.604383959Z Mixed numbers and improper fractions review Review how to rewrite mixed numbers as improper fractions and improper fractions as mixed numbers.  Then, try some practice problems. article https://www.khanacademy.org/math/mh-math-class-4-new/x0aa85301e8a9ef71:fractions/x0aa85301e8a9ef71:mixed-fractions/e/b6-proper-and-improper-fractions 2026-05-20T12:40:50.11955281Z Proper and improper fractions Proper and improper fractions ashish exercise https://www.khanacademy.org/math/arithmetic-home/arith-review-fractions/visualizing-equiv-frac/e/simplifying_fractions 2025-04-16T14:34:12.637894812Z Simplify fractions Practice writing fractions in simplest form.  Marcia Lee exercise https://www.khanacademy.org/math/arithmetic-home/arith-review-fractions/arith-comparing-fractions/v/comparing-fractions 2021-06-24T19:33:08Z Comparing fractions Comparing Fractions Sal Khan video https://cdn.kastatic.org/googleusercontent/6xxlFj3G9RUIhOas28o_ZT42FFd1R1KD55-5CQW01bkaHFRPGVaAEGlS3EHVqLb9QWu4X7hQXHvEwTqyygIxuE4d Comparing fractions Comparing Fractions https://cdn.kastatic.org/ka-youtube-converted/Io9i1JkKgN4.mp4/Io9i1JkKgN4.mp4 150 Addition and subtraction of similar fractions, including mixed numbers https://www.khanacademy.org/math/cc-fourth-grade-math/imp-fractions-2/imp-adding-and-subtracting-fractions-with-like-denominators/v/adding-fractions-with-like-denominators 2021-07-02T09:35:26Z Adding fractions with like denominators Sal adds 3/15+7/15. Sal Khan video https://cdn.kastatic.org/googleusercontent/CF07ubahhaWVnQbITWplYbItPtibFW9_f0zBBjhNFMlz0mUmFGQzBH-rm9y-y1O5UjW_HTJzk9olXoRV_39y7-LScA Adding fractions with like denominators Sal adds 3/15+7/15. https://cdn.kastatic.org/ka-youtube-converted/EJjnEau6aeI.mp4/EJjnEau6aeI.mp4 198 Addition and subtraction of similar fractions, including mixed numbers https://www.khanacademy.org/math/cc-fourth-grade-math/imp-fractions-2/imp-adding-and-subtracting-fractions-with-like-denominators/e/adding_fractions_with_common_denominators 2024-05-02T20:43:09.586615431Z Add fractions with common denominators Add two fractions with the like denominators.   Marcia Lee exercise https://www.khanacademy.org/math/cc-fourth-grade-math/imp-fractions-2/imp-adding-and-subtracting-fractions-with-like-denominators/v/subtracting-fractions 2021-07-02T09:35:28Z Subtracting fractions with like denominators Sal subtracts 8/18-5/18. Sal Khan video https://cdn.kastatic.org/googleusercontent/VnvhAkRqLwHCIk4OcVft3Fw94aPnRyTXY-wW_po5d-KiUqJxVqzxCScGEVeFqiCGTjMe7zJOIpJlp23zCiO2riBr Subtracting fractions with like denominators Sal subtracts 8/18-5/18. https://cdn.kastatic.org/ka-youtube-converted/UbUdyE1_b9g.mp4/UbUdyE1_b9g.mp4 146 Addition and subtraction of similar fractions, including mixed numbers https://www.khanacademy.org/math/cc-fourth-grade-math/imp-fractions-2/imp-adding-and-subtracting-fractions-with-like-denominators/e/subtracting_fractions_with_common_denominators 2025-09-16T18:00:55.725619518Z Subtract fractions with common denominators Solve a subtraction problem with two fractions with like denominators.   Marcia Lee exercise https://www.khanacademy.org/math/cc-fifth-grade-math/imp-fractions-3/imp-adding-and-subtracting-fractions-with-unlike-denominators/v/adding-small-fractions-with-unlike-denominators 2026-03-10T04:40:42.349852002Z Adding fractions with unlike denominators Learn how to add two fractions with different denominators. It can be challenging to combine fractions when the denominators don't match. It is important to find a common denominator. Finally, the resource shows how to find a common multiple of the two denominators in order to convert the fractions so they can be added together. video https://cdn.kastatic.org/googleusercontent/EeHR_uZPZlXZKP-3VZDsOr8WFeKnUgKKFjTnaea8kP3aWG5vjjT1bydR9QDybgSCxJB51sQSRgHJFbkYIvlgJIGX Adding fractions with unlike denominators Learn how to add two fractions with different denominators. It can be challenging to combine fractions when the denominators don't match. It is important to find a common denominator. Finally, the resource shows how to find a common multiple of the two denominators in order to convert the fractions so they can be added together. https://cdn.kastatic.org/ka-youtube-converted/bcCLKACsYJ0.mp4/bcCLKACsYJ0.mp4 444 Addition and subtraction of similar fractions, including mixed numbers https://www.khanacademy.org/math/cc-fifth-grade-math/imp-fractions-3/imp-adding-and-subtracting-fractions-with-unlike-denominators/e/adding_fractions 2025-02-10T05:04:39.155459793Z Add fractions with unlike denominators Practice adding fractions that have different denominators. Marcia Lee exercise https://www.khanacademy.org/math/cc-fifth-grade-math/imp-fractions-3/imp-adding-and-subtracting-fractions-with-unlike-denominators/v/subtracting-small-fractions-with-unlike-denominators 2022-11-16T04:22:43.7414897Z Subtracting fractions with unlike denominators To subtract fractions with different denominators, you need to find a common denominator. This can be done by identifying the least common multiple of the two denominators. After rewriting the fractions so they both have the common denominator, you can subtract the numerators as you would with any two fractions. video https://cdn.kastatic.org/googleusercontent/bXhENKEsU2-HJYbsZd2b6Ft3n_R060Q01MPUr3QKFY85ubU1Q6N5weJBzV4jJDcyXxXJtBUYZ3Z8wkbhdHitPcVN6Q Subtracting fractions with unlike denominators To subtract fractions with different denominators, you need to find a common denominator. This can be done by identifying the least common multiple of the two denominators. After rewriting the fractions so they both have the common denominator, you can subtract the numerators as you would with any two fractions. https://cdn.kastatic.org/ka-youtube-converted/2DPivVFCdqA.mp4/2DPivVFCdqA.mp4 301 Addition and subtraction of similar fractions, including mixed numbers https://www.khanacademy.org/math/cc-fifth-grade-math/imp-fractions-3/imp-adding-and-subtracting-fractions-with-unlike-denominators/e/subtracting_fractions 2025-02-10T05:04:39.155459793Z Subtracting fractions with unlike denominators Practice subtracting fractions that have different denominators. Marcia Lee exercise https://www.khanacademy.org/math/4th-grade-philippines/x178724567c9e5e1b:2nd-quarter/x178724567c9e5e1b:addition-and-subtraction-of-similar-and-dissimilar-fractions/e/b6-addition-of-fractions 2023-03-02T09:29:16.097865162Z Addition of fractions Addition of fractions ashish exercise https://www.khanacademy.org/math/4th-grade-philippines/x178724567c9e5e1b:2nd-quarter/x178724567c9e5e1b:addition-and-subtraction-of-similar-and-dissimilar-fractions/e/b6-subtraction-of-fractions 2023-03-02T09:29:16.097865162Z Subtraction of fractions Subtraction of fractions ashish exercise