morning: 8 6/8 cups
afternoon : 4 7/8 cups
Add both
First, express the mixed number as fractions:
8 6/8 = (8x8+6)/8 = 70/8 = 35/4
4 7/8 = (8x4+7)/8 = 39/8
Then, add:
35/4+ 39/8
Multiply the first fraction by 2/2 to obtain the same denominators.
70/8 +39/8 = (70+39) /8 = 109/8 = 13 5/8
