Ответ:
1) 10 2/5 + 3 3/5 = 13 5/5 = 14
2) 18 13/27 + 10 20/27 = 28 33/27 = 29 6/27
3) 1 - 13/17 = 4/17
4) 15 - 12 12/13 = 2 1/13
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Ответ:
1) 10 2/5 + 3 3/5 = 13 5/5 = 14
2) 18 13/27 + 10 20/27 = 28 33/27 = 29 6/27
3) 1 - 13/17 = 4/17
4) 15 - 12 12/13 = 2 1/13