If makenzie has 2 cups, 7 pints, 8 quarts, and 11 half-gallons of lemonade, how many total gallons does she have? Express your answer as a mixed answer.
we know that
1 gallon=16 cups
1 gallon=8 pints
1 gallon=4 quarts
step 1
Convert units
2 cups=2/16 gallons=1/8 gal
7 pints=7/8 gal
8 quarts=8/4 gal=2 gal
11 half-gallons=11/2 gal
step 2
Adds the numbers
1/8+7/8+2+11/2=3+11/2=3+5.5=8.5 gal
Convert to mixed number
8.5 gal=8+0.5=8+1/2=8 1/2 gal
therefore
the answer is
8 1/2 gal