Question

Kara has 4/5 gallon milk, she gives some to her brother. Now she 1/3 gallon of milk. How much milk, in gallons, did she give to her brother

Answer 1

7/15 of a gallon

Explanation:

Her starting amount 4/5 is equivalent to 12/15. Her ending amount 1/3 is equal to 5/15. So subtract her end amount from her starting amount to find how much she gave to her brother. 12/15 - 5/15 = 7/15.