why does multiplying a number by 31/2 increase its value?

Question

31/2* 22/3____ 22/3

Answer 1

Whenever you multiply a number greater than 1, you will get an increase in value.

Think of it this way:

31/2 is the same as 31 ÷ 2, which gives us 15.5.

 

Now you're multiplying one positive number by 15.5, which will thus increase it's value.