Question

A recipe for one batch of muffins included 2/3 cup of raisins.Vita made 2 1/2 batches of muffins. How many cups of raisins did she use?

Answer 1

amount of rasins=number of cups of rasin per recepie times number of batches
amount=2/3 times 2and 1/2
2 and 1/2=2+1/2=4/2+1/2=5/2

2/3 times 5/2=10/6=5/3

1 and 2/3 cups

Answer 2

(2/3)x = 5/2

x = 15/4