выполните действия. 4.3/8-(3.5/7-1.5/7)+1.5/8; 12.7/12-4.5/12-(20.3/4-19.3/4);
1) 3 5\7 - 1 5\7 = 2
2) 4 3\8 - 2 = 2 3\8
3) 2 3\8 + 1 5\8 = 3 8\8 = 4
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ПРИМЕР 2
1) 20 3\4 - 19 3\4 = 1
2) 12 7\12 - 4 5\12 = 8 2\12 = 8 1\6
3) 8 1\6 - 1 = 7 1\6
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