а) 2/3 множим на 2, 3 и 4= 4/6, 6/9, 8/12
3/8 = 6/16, 9/24, 12/32
2/7 = 4/14, 6/21, 8/28
5/6 = 10/12, 15/18, 20/24
7/9 = 14/18, 21/27, 28/36
7/12 = 14/24, 21/36, 28/48
б)48/60 = 24/30, 16/20, 12/15
36/72 = 18/36, 9/18, 4/9
48/84 = 24/42, 16/28, 12/21
96/120 = 48/60, 24/30, 12/15
30/110 = 15/55, 6/22, 3/11
28/56 = 14/28, 7/14, 3/8
Надеюсь все так)
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а) 2/3 множим на 2, 3 и 4= 4/6, 6/9, 8/12
3/8 = 6/16, 9/24, 12/32
2/7 = 4/14, 6/21, 8/28
5/6 = 10/12, 15/18, 20/24
7/9 = 14/18, 21/27, 28/36
7/12 = 14/24, 21/36, 28/48
б)48/60 = 24/30, 16/20, 12/15
36/72 = 18/36, 9/18, 4/9
48/84 = 24/42, 16/28, 12/21
96/120 = 48/60, 24/30, 12/15
30/110 = 15/55, 6/22, 3/11
28/56 = 14/28, 7/14, 3/8
Надеюсь все так)