Помогите пожалуйста!!!!!!!
1/2 + 3/8 = 4/8 + 3/8 = 7/8 2/7 + 5/14 = 9/14 3/5 + 4/15 = 13/15 1/8 + 3/16 = 6/16 = 3/8 2/9 + 5/18 = 9/18 = 1/2 8/13 - 1/26 = 15/26 7/15 - 7/30 = 7/30 2/19 - 1/38 = 3/38 5/7 - 3/14 = 7/14 = 1/2 4/21 - 1/7 = 0 7/20 + 11/50 = 35/100 + 22/100 = 37/100
ок
5/8 - 2/7 = 19/56
3/4 + 5/12 = 1 целая 1/6
15/23 - 27/46 = 3/46
9/25 - 14/117 = 953/2952
ещё!
а последнее 5/7ответ
17/35 - 13/28 = 3/140
Да, верно, т.к. 1 целая = 7/7, а 7/7 - 2/7 = 5/7.
большое спасибо
4\10 7\21 7\20 4/24 9\20