8/5 + 9/10 = 125/50 or 5/2 or 21/2
8/10 + 4/5 = 8/5 or 13/5
3/10+5/8 = 37/40
5/8 + 5/8 = 10/8 = 5/4 or 11/4
2/5 + 8/5 = 10/5 = 2
8/5 + 7/10 = 16/10 + 7/10 = 23/10 = 23/10
5/8 + 1/10 = 25/40 + 4/40 = 29/40
-3/2 + 8/5 = 1/10
5/10 + 1/30 = 8/15
3/5 + 2/10 = 6/10 + 2/10 = 8/10 = 4/5.
-15/10 + 16/10 = 1/10
4.825 or 433/40
8+1+5+5+3+8+10+30=70 The answer is 70