Question

These questions are a bit hard and I would like help from anyone really =

2.9+6 2/5, 16 3/4 + 8.25, 3 1/2 - 2/5, and 3 1/4 + 3/25 . If you could help I'd appreciate it very much < 3

Answer 1

1)9 1/10 or 9.1, 2)25, 3)3 9/10 or 3.9, and 4)3 37/100 or 3.37