71
7 and 10/15 + 2 and 12/15 = 9 and 22/15 = 10 and 7/15
9/10 + 6/10 = 15/10 (Which can be written as 3/2 or 11/2)
7 and 2/15 + 5 and 10/15 + 9 and 13/15 = 21 and 25/15 = 22 and 2/3
The commutative property.
(9 + 15) / (15 - 10) = 24 / 5 = 4.8
10+9+15+8+4+6+11=63
The answer is... 1 whole and 15 over 30
71
6/10 + 3/9 = 3/5 + 1/3 = 9/15 + 5/15 = 14/15
7 and 10/15 + 2 and 12/15 = 9 and 22/15 = 10 and 7/15
9 + 9 + 10 + 10 = 38
9/15 + 10/15 = 1 and 4/15
9/10 + 6/10 = 15/10 (Which can be written as 3/2 or 11/2)
3/5 + 9/10 = 6/10 + 9/10 = 15/10 = 3/2 or 11/2
9/10 + 3/5 = 9/10 + 6/10 = 15/10 = 3/2 or 11/2
They sum up to 15