Problema Solution
A recipe requires 5 5/7 cups of milk. Ran put in 3 6/7 cups and emptied a container. How much more milk does he need to put in?
Answer provided by our tutors
Convert everything to fractions:
Total: 5 5/7 = 5*(7/7) + 5/7 = 35/7 + 5/7 = 40/7
Already in: 3 6/7 = 3*(7/7) + 6/7 = 21/7 + 6/7 = 27/7
Remainder needed: 40/7 - 27/7 = 13/7 = 1 6/7 (1 and 6/7 cups)