-1/8 is your answer
hope this helps
Sally read 3.25 and her brother read 1.75 non fiction
they all read 5 non fiction books all together
1 serving = 2/3 cup
12 serving = 2/3 x 12 = 8 cups
Answer: 12 servings of muffin would need <u>8 cups</u> of the muffin mix.