3/8+1/8=4/8=1/2 simplified
4/5+3/4= common denominator of 20
new fraction: 16/20+15/20
31/20=1 11/20 simplified
6/7+2/5 common denominator of 35
new fraction: 30/35+14/35
44/35
1 9/35 simplified
7.8m questions
10.5m answers