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MAP Recommended Practice

Course: MAP Recommended Practice>Unit 34

Lesson 23: Multiplying fractions and whole numbers

Multiplying unit fractions and whole numbers

Sal multiplies 1/2 x 5 using repeated addition and fraction models. Created by Sal Khan.

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• If 1/2 x 5 is 5/2 does that mean 5 x 1/2 is the same?
• Yes. When you multiply a fraction or whole number, if the places are interchange, the answers are the same!
#Warning:This doesn't mean the application process is the same!!XD
• 5/6 × 4 is what
• The answer is 20/6, but it is not simplified. You should always simplify fractions if you can. 20/6 can be simplified to 10/3. since 10/3 is an improper fraction, we need to change it to a mixed number. 10 goes inside 3, 3 times and there is one left over. So the answer is 3 1/3. Sorry if this doesn't make sense, I'm only in fifth grade.
• The star (*) is just another way of saying your multiplying so x is also * just with a different shape. =)
• how would you multiply 3 1/4 x 6?
• Try converting 3 1/4 to an improper fraction, that should make it a lot easier
• how do you do mixed fractions * fractions
• For example ,if they ask you (5 1/2) right?than you just calculate it like this(2 times five,which is 10 ,after that,youplus 1 to 10.)I hope it will help ALIVIA S.
• What does it mean by find each product
• This could mean that there's more than 1 multiplication problem present in the question. Which, in this case, you have to find the products of the multiplication given. I hope this helps Eva Medina Whitley!
• hey~ mind if i get thitrty likes?~
• so tell me if I'm wrong plz and thanks 9/12 = 3 x 3/12?
• U are right. 9/12 does equal 3x3/12 because 3x3 is 9.
• when adding them together to get 5/2 why are the 1's added but yet the 2's stay as 2 and not 10?
• I love him
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