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Arithmetic

Course: Arithmetic>Unit 16

Lesson 4: Divide whole numbers to get a decimal quotient

Divide whole numbers with decimal quotients: 5÷2

Sal uses fractions and place value strategies to divide simple whole numbers like 5÷2 to get decimal quotients. Created by Sal Khan.

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• why is doing this hard
• I dont know.All I know is i'm on your side.It's hard.
• Why does it make sense to equate 5/2 as 50 tenths / 2 = 25 tenths = 2.5

But, 12 / .5 = 120 tenths / 5 tenths = 24 and not 24 tenths, which would be 2.4.

How do you decide which equations to drop the extra tenths.

Following the rule of converting to tenths, wouldn't it make sense to say:

50 tenths / 20 tenths =
• Tbh I don't know either...
• So 5 ÷ 2 = 5/2 ( ) , which as a improper fraction is 2 1/2 ( ). 2 1/2 as a decimal is 2.5 ( ), so 5 ÷ 2 is equal to 2.5, right? Please tell me if I made any mistakes, I'd like to know.

Thx!
• You did not make any mistakes in your calculations, but remember that improper fractions are fractions with a numerator greater than the denominator; 5/2 is already an improper fraction.
Values with both a whole number and a proper fraction combined are mixed fractions, so the 2 (and) 1/2 is a mixed fraction.
• How am i supposed to do this!
• If you divide 5/2, think about 1/2 of a pizza. If you have 5 of the 1/2 pizzas, you can put two sets of two 1/2 pizzas to make 2 full pizzas, and you still have 1/2 a pizza left, so you have a total of 2 1/2 pizzas. 5/3 would be 1 full pizza and 2/3 left, so 1 2/3.
• do you like these things⌚️📱💻⌨️🖥️🖱️🎮🍣.
• Yes I do very much
• How does this make sense like how do you turn a whole number into a fraction then into a decimal! Whats next how to turn 1+1 into a book?
• I think that people just get a little too into the grove and start using hard examples to demonstrate how to do this or/and some people just have a hard time understanding things a different way then they are used to and freak out about it. I understand that this is tricky it is for me too but we HAVE to learn this if not ..... bad things could happen. So, please follow this piece of advice: No matter what try your best; ask questions and always wonder. If you do things will feel much better. And every day in the morning or when you have time meditate and think that your life is a video and you have many fans so you will always have a positive and good spirit.
(1 vote)
• Tbh the video doesn’t really help me with the questions I’m getting, I can easily do five divided by two, but questions I’m getting are seven divided by twenty, which this video doesn’t help answer.
• this is the easy way.20*5=100,7*5=35.35/100=0.35
• So 5 ÷ 2 = 5/2 ( ) , which as a improper fraction is 2 1/2 ( ). 2 1/2 as a decimal is 2.5 ( ), so 5 ÷ 2 is equal to 2.5, right? Please tell me if I made any mistakes, I'd like to know.
• Why does it make sense to equate 5/2 as 50 tenths / 2 = 25 tenths = 2.5

But, 12 / .5 = 120 tenths / 5 tenths = 24 and not 24 tenths, which would be 2.4.

How do you decide which equations to drop the extra tenths.

Following the rule of converting to tenths, wouldn't it make sense to say:

50 tenths / 20 tenths =