Question

What's 1 1/2 times 1 1/2

Answer 1

2.25 or 9/4 or 2 1/4

Answer 2

Ok so it would be 2.25 or 2 1/4. 

Explanation-
You could take the 1 1/2 and make it a decimal 1.5 and multiply it by again 1.5
There are many other ways you could solve this problem but this is the easiest.