Question

Решите пожалуста
2/3-1/9
4/5+6/25
11/12 - 1/12
1/2 + 2/7
13/15 - 2/3
3/8 + 1/3
4/5-1/10
1/9+2/9
5/24-1/6
12/19+7/19
2/7+1/6
7/15-1/15
2/9+7 /18
14/21-4/7
4/15+1/3

Answer 1

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