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Course: MAP Recommended Practice>Unit 34

Lesson 23: Multiplying fractions and whole numbers

Multiplying fractions by whole numbers on a number line

We can multiply fractions by whole numbers on the number line. We multiply them by adding the fraction multiple times, just like we do with whole numbers.

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• Why does he make the question 5x1/3 so complex when all you have to do is do 1x5=5 and add the 3?
• "All you have to do" shows that the problem is already intuitive for you to solve. For those where the problem is not yet intuitive to solve, it needs to be explained why the solution works.

Someone is eventually going to ask you "Why do I have to do 1x5 and why is 1x5=5?" and you have to be able to explain that in a clear manner.
• what if the number is big this is hard! Help Me...
(1 vote)
• Why do we have to mutiply fraction?
• because u need it in life even tho u really want need it unless you want to be something
• why do you have to multiply upper one to upper one and the low one to low one
• because it math
• wouldn't you just put the 2 over 1 and multiply
• Yeah! Thats what I was thinking!
(1 vote)
• Hi can you guys do this
• yes i can do it
(1 vote)
• Good teacher! Are you teaching online classes?!