Question

5 1/5 divided by 1 3/10? can someone show me how to solve this ?

Answer 1

id say divide ...

Answer 2

if you turn them into improper fractions; itll be easier

Answer 3

i know that , but once they are improper what then

Answer 4

well the memory schtic is to flip the bottom over the top and multiply across

Answer 5

but what you really do is just multiply top and bottom by the reciprocal of the bottom

Answer 6

\[\frac{\cfrac{a}{b}}{\cfrac{c}{d}}*\frac{\cfrac{d}{c}}{\cfrac{d}{c}}=\frac{\cfrac{ad}{bc}}{\cfrac{cd}{cd}}\implies\frac{ad}{bc}\]

Answer 7

as you can see, the bottom goes to one and becomes rather trivial

Answer 8

yeah i see it now , just wanted to make i was showing my son the right way to do it