Question

When an oil tank is 7/12 full, it contains 5 1/4 gallons. How many gallons does it hold when full

Answer 1

Answer:

The tank can hold up to 9 gallons.

Quick Review:

By doing the inverse of 7/12, 12/7, when you multiply it, you'll get a value of 1.

7/12 * 12/7 = 1

Doing the Problem:

By multiplying 5 1/4 by 12/7, you'll get the answer. But first, convert 5 1/4 into an improper fraction.

5 1/4 ---> 21/4

Okay, lets go!

21/4 * 12/7 = 252/28

When reduced, this gives you the answer 9/1, or 9 gallons.

Hope that helps, :)