Question

What is `25/4 * 18/10`?

Answer 1

The first answer would be `(25*18)/(4*10)`

Explanation:

But then you can simplify by realizing that:
`25=5*5,18=2*3*3,4=2*2,10=2*5`

We then get:
`(5*5*3*6)/(2*2*2*5)=(cancel5*5*cancel2*3*3)/(cancel2*2*2*cancel5)=45/4=10 1/4`