Word problem Fractions

Question

Marty has a box of raisins. He uses 1 1/2 cups of raisins for trail mix. Then he opens a bag with 2 1/3 cups of raisins in it. Marty then uses 3/4 cup of raisins for bread pudding. There are 3 1/2 cups of raisins left. How many cups of raisins were in the box?

Answer 1

The LCD is 12

3 1/2 + 3/4 + 2 1/3 + 1 1/2 =

7/2 + 3/4 + 7/3 + 3/2 =

42/12 + 9/12 + 28/12 + 18/12 =

97/12 =

8 and 1/12