If Fran's fudge recipe calls for 2 1/2 cups of sugar and she increases it by 2/5 of a cup, how much sugar does she use?

Answer 1

I think it might be 3.3 but to make sure use a desmos calculator it is very helpful

Answer 2

2 1/2 + 1/5 = 2 5/10 + 2/10 = 2 7/10

Answer 3

2 9/10

Answer 4

its 2 9/10