Вычислите: 2/5 + 3/5;
3/7 - 2/74
7/20 - 3/20
1/9 + 5/9
6/23 - 2/23
3/20 + 7/20
31/29 - 2/29
11/51 + 13/51
17/72 - 13/72
32/55 + 23/55
5/33 + 6/33
13/48 - 11/48

Question

Математика: Вычислите: 2/5 + 3/5; 3/7 - 2/74 7/20 - 3/20 1/9 + 5/9 6/23 - 2/23 3/20 + 7/20 31/29 - 2/29 11/51 + 13/51 17/72 - 13/72 32/55 + 23/55 5/33 + 6/33 13/48 - 11/48

danilarostov2 · Answer

1) 1 2) 1/7 3) 1/5 4) 2/3 5) 3/23 6) 10/20=1/2 7) 11/29 8) 26/51 9) 4/72 Oбъяснение:...