Question

My recipe calls for 2/3 cups of white flour and 2 1/5 cups of whole wheat flour how much flour do i need in total for my recipe

Answer 1

2/3 = 10/15
2 1/5 = 2 3/15
2 3/15 + 10/15 = 2 13/15
You need 2 13/15 cups of flour.