Aiden has 7/10 cup cereal, 2 2/3 cups pretzels, 1/6 cup raisins and 2/5 cup chocolate chips to make a party mix. How much party mix will he have in all if he uses all the ingredients he has?

7/10 = 21/30

2 2/3 = 2 20/30
2/5 = 12/30
1/6 = 5/30

The sum is 2 58/30 = 3 28/30 = 3 14/15