Question

427.Выполните действия
7/12+7/20
3/8+1/18
1/12+11/14
2/15+7/12
9/14-5/12
19/75+7/50​

Answer 1

7/12 + 7/20 = 35+21/60 = 56/60 = 14/15

3/8+1/18= 27+4/ 72 = 31/72

1/12 + 11/14= 7+66/84 = 73/84

2/15+7/12= 2+7/15 = 9/15 = 3/5

9/14-5/12= 54-35/84 = 19/84

19/75+7/50= 38+21/ 150 = 59/150