Jill used one half quart of paint in three fourths hour. What is her usage rate in quarts per hour?

Answer 1

(1/2) qt/(3/4) hr = (1/2)*(4/3) qt/hr = (2/3) qt/hr

The rule for division of fractions is: invert the denominator and multiply.

I have heard that there is a new mnemonic for this but I haven't memorized it yet!