Question

Ms. Johnson had 3/4 of a tank of gas when she started a trip. When she arrived home, she had 1/8 of a tank left.What fraction of a tank of gas was used during the trip

Answer 1

3/4 - x = 1/8
x is the fraction used
3/4 - 1/8 = x
(8)3/4 - 1/8(4) = x
24/32 - 4/32 = x
20/32 = x
Simplify
20/32 (/4) = 5/8
Hence she used 5/8 of the tank
To check the answer
3/4 - 5/8 = 1/8

ANSWER:
5/8

Answer 2

5/8

Explanation:

3/4 = 6/8

6/8 - x = 1/8

x = used gas = 5/8