Question

A bus driver filled up 7/8 of her fuel tank for a trip. She used 6/7 of the fuel by the end of the trip. The capacity of the tank is 70 gallons. How much fuel did she use for the trip? Express your answer as a decimal.

Answer 1

You multiply 7/8 times 70 to get 61.25, then you multiply that by 6/7, to find that she used 52.5 gallons for her trip.