https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:real-numbers/x06d55bfa213a79fd:irrational-numbers/v/intro-to-rational-irrational-numbers-indian-accent 2025-06-03T10:39:13.727334631Z Intro to rational & irrational numbers Learn the difference between rational and irrational numbers, learn how to identify them, and discover why some of the most famous numbers in mathematics, like Pi and e, are actually irrational. Did you know that there is always an irrational number between any two rational numbers? Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Intro to rational & irrational numbers Learn the difference between rational and irrational numbers, learn how to identify them, and discover why some of the most famous numbers in mathematics, like Pi and e, are actually irrational. Did you know that there is always an irrational number between any two rational numbers? https://cdn.kastatic.org/ka-youtube-converted/ZFVTMBoD48c.mp4/ZFVTMBoD48c.mp4 354 Operations on rational numbers 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 Operations on rational numbers https://www.khanacademy.org/math/cc-fifth-grade-math/5th-multiply-fractions/imp-multiplying-fractions/v/concept-fraction-mult-number-line 2023-07-24T13:48:13.07161686Z Multiplying 2 fractions: number line Learn the concept of multiplying fractions by fractions. Watch as the process is visually represented on a number line, helping to understand the 'why' behind the procedure.  Sal Khan video https://cdn.kastatic.org/googleusercontent/JPcNiw1X2Oa7quN0eFnNhsYqlv_9XGldvs17ursdwwcgEqFqoXqXiXVX8duxC_P9RTk5opUB5WLVgq6GgqBq-0HRZA Multiplying 2 fractions: number line Learn the concept of multiplying fractions by fractions. Watch as the process is visually represented on a number line, helping to understand the 'why' behind the procedure.  https://cdn.kastatic.org/ka-youtube-converted/lJdb4_Fuxvw.mp4/lJdb4_Fuxvw.mp4 286 Operations on rational numbers https://www.khanacademy.org/math/revision-term-1-mh-math-class-8/x0c43044bb5624863:week-1/x0c43044bb5624863:rational-and-irrational-numbers/v/converting-a-fraction-to-a-repeating-decimal-india 2025-03-28T07:05:36.573142233Z Converting a fraction to a repeating decimal Converting a fraction to a repeating decimal (Indian Accent) Aakash Bagga video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Converting a fraction to a repeating decimal Converting a fraction to a repeating decimal (Indian Accent) https://cdn.kastatic.org/ka-youtube-converted/KtofePYDFz4.mp4/KtofePYDFz4.mp4 265 Operations on rational numbers https://www.khanacademy.org/math/8th-grade-illustrative-math/unit-8-pythagorean-theorem-and-irrational-numbers/lesson-14-decimal-representations-of-rational-numbers/v/converting-repeating-decimals-to-fractions-part-1-of-2 2025-03-28T07:05:36.573142233Z Converting repeating decimals to fractions (part 1 of 2) Converting repeating decimals to fractions (part 1 of 2) (Indian Accent) Aakash Bagga video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Converting repeating decimals to fractions (part 1 of 2) Converting repeating decimals to fractions (part 1 of 2) (Indian Accent) https://cdn.kastatic.org/ka-youtube-converted/GMXAckRulSU.mp4/GMXAckRulSU.mp4 242 Operations on rational numbers https://www.khanacademy.org/math/8th-grade-illustrative-math/unit-8-pythagorean-theorem-and-irrational-numbers/lesson-14-decimal-representations-of-rational-numbers/v/converting-repeating-decimals-to-fractions-part-2-of-2-india 2025-03-28T07:05:36.573142233Z Converting repeating decimals to fractions (part 2 of 2) Converting repeating decimals to fractions (part 2 of 2) (Indian Accent) Aakash Bagga video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Converting repeating decimals to fractions (part 2 of 2) Converting repeating decimals to fractions (part 2 of 2) (Indian Accent) https://cdn.kastatic.org/ka-youtube-converted/4hrdbrDtT_M.mp4/4hrdbrDtT_M.mp4 545 Operations on rational numbers https://www.khanacademy.org/math/cc-fifth-grade-math/imp-algebraic-thinking/imp-writing-expressions/v/evaluating-an-expression-with-and-without-parentheses 2023-07-24T13:48:13.07161686Z Evaluating expressions with & without parentheses Explore the concept of order of operations, emphasizing the importance of parentheses in mathematical expressions.Learn how the placement of parentheses can drastically change the outcome of an expression, highlighting the need to follow the correct sequence: parentheses, multiplication and division, then addition and subtraction. Sal Khan video https://cdn.kastatic.org/googleusercontent/7M2ecybRuNDDv9Ib_YKGdVm1HHBevhIVH4F0nNCVPuf8hk8CUWmz4dLJy-0PPcrYs6NWm32NY3A6W7jcFD3O6k_s Evaluating expressions with & without parentheses Explore the concept of order of operations, emphasizing the importance of parentheses in mathematical expressions.Learn how the placement of parentheses can drastically change the outcome of an expression, highlighting the need to follow the correct sequence: parentheses, multiplication and division, then addition and subtraction. https://cdn.kastatic.org/ka-youtube-converted/-rxUip6Ulnw.mp4/-rxUip6Ulnw.mp4 126 Operations on rational numbers https://www.khanacademy.org/math/revision-mh-math-class-7/xa11c0f43538c6736:week-1/xa11c0f43538c6736:operations-on-rational-numbers/e/revision-operations-on-rational-numbers-mh-class-7 2026-01-28T03:50:33.306290623Z Revision Operations on rational numbers MH class 7 . Khan Academy exercise