Question

Explain how you can find the missing number in 3 4/5 divide [ ] = 2 5/7 then find the missing number. I need help now please.

Answer 1

answer is 10 11/35

Because here you are finding an unknown, so you redo the problem.
The problem tells you to divide so the opposite is times the number
so 2 5/7 times 3 4/5 is 10 11/35

Answer 2

find the missing number in 3 4/5 divide [ ] = 2 5/7

Let the unknown number be x

`(3 (4)/(5))/(x)=2(5)/(7)`

`3(4)/(5)` can be written as
`(19)/(5)`

`2(5)/(7)` can be written as
`(19)/(7)`

So equation becomes

`((19)/(5))/(x)=(19)/(7)`

We need to get x alone, so we multiply by x on both sides

`(19)/(5)=(19)/(7) *x`

Now to remove 9/7 we take reciprocal and multiply it on both sides

`(19)/(5) * (7)/(19) =(19)/(7)* (7)/(19) *x`

`(7)/(5)=x`

The missing number is
`(7)/(5)`