Alan finished his homework in 1 1/2 hours. It took Jimmy 3/4 of an hour longer than Alan to finish his homework. How long did it take Jimmy to finish his homework?

Question

asked Apr 28, 2022 16.3k views

2 Answers

Ethan Barron · Answer 1 · 2022-04-30T17:43:21+0000

Explanation:

We need to add 3/4 of an hour to Alan's time.

Let's put Alan's time into a pure fraction.

1(1)/(2) = (2)/(2)(1)/(2) = (3)/(2)

Now we can add 3/4 to 3/2.

First, we need to find a common denominator (the bottom number).

4 and 2 is easy. The common denominator is 4. So let's solve it.

(3)/(2) * (2)/(2) = (6)/(4)

(6)/(4) + (3)/(4) = (6+3)/(4)