2)2 7/10+9 2/15 =2 21/30+9 4/30=
11 5/6
4)1 7/12+3 5/9 =1 21/36+3 20/36=
4 41/36=5 5/36
6) 3 1/12+4 2/15= 3 5/60+4 8/60=
7 13/60
2)2 7/10+9 2/15 =2 21/30+9 4/30=
11 5/6
4)1 7/12+3 5/9 =1 21/36+3 20/36=
4 41/36=5 5/36
6) 3 1/12+4 2/15= 3 5/60+4 8/60=
7 13/60