16/3 = 80/15
18/5 = 54/15
80 + 54 = 134/15 = 8 and 14/15
2
5/6 x 2 2/5 = 2
3 and 4 5ths
2/5 of 5/6 is 1/3.
I got 20/30 or 2/3
5/6 - 2/5 = 3/5
3/5 x 5/6 is 1/2
5 5/6 x 2 2/5 is 14.
5/15 + 12/15 = 17/15 or 1 and 2/15
5/6 x 3/5 = 1/2
5/6 is also 25/30. 2/5 is 12/30. So 5/6 + 2/5 = 37/30, or 1 7/30
5/6 * 2 2/5 = (5/6)(12/5) = 60/30 = 2