Question

Greg’s mother fills the tank of her car with gas on Saturday morning. She uses 1/4 of the tank on Saturday and another 2/5 of the tank on Sunday. How much gas remains in the gas tank?

Answer 1

7/20

Explanation:

You would do one whole tank minus how much she used on Saturday and minus how much of the tank she used on Sunday.

1-(1/4)-(2/5)=7/20