Выполните действия:
1/8+1/4
2/3-5/9
1/2-5/12
5/12-2/9
1/8+7/12
3/4-1/6
5/9+3/4
23/40-3/8
9/35-3/28

1.1/8+1/4=1/8+2/8=3/82.2/3-5/9=6/9-5/9=1/9 3.1/2-5/12=6/12-5/12=1/12 4.5/12-2/9=15/36-8/36=7/365.1/8+7/12=6/48+28/48=34/48=17/246.3/4-1/6=9/12-2/12=7/127.5/9+3/4=20/36+27/36=47/36=1 целая 11/368.23/40-3/8=23/40-15/40=8/40=1/59.9/35-3/28=36/140-15/140=21/140=3/20