7/5+6/10= 1/6+2/5= 5/6-5/18=

1. 7/5 + 6/10 = 14/10 + 6/10 = 20/10 =10

2. 1/6 + 2/5 = 5/30 + 12/30 = 17/30

3. 5/6 - 5/18 = 15/18 - 5/18 = 10/18 = 5/9

20/10=17/30=10/18 itu jawabannya