Question

What is 9/16 + -1/4?

A. 2/3

B. 1/4

C. 3/4

D. 5/16

Answer 1

Okay, first you need to find a common denominator. Do you know what it is?

Answer 2

it is 64??

Answer 3

That is a common, but it's not the least. Can 4 go into 16?

Answer 4

4 is less than 16

Answer 5

Is 16 divisible by 4?

Answer 6

yes of course, is 4

Answer 7

Okay, so now we know that 16 is the Least Common Denominator. Now, what do we have to do to get -1/4 into something over 16?

Answer 8

it is 4, because 16 : 4 x 1 = 4?????