Ответ учителя по предмету Математика
4 34/35 : 3 — 2/13 * 5 17/20 + 1/2 + 1/5 * 3 5/7 + 8 3/4 ;
1) 4 34/35 : 3 = 154/35 * 1/3 = 154/105 = 1 49/105 = 1 7/15
2) 2/13 * 5 17/20 = 2/13 * 117/20 = 9/10
3) 1/5 * 3 5/7 = 1/5 * 26/7 = 26/35
4) 1 7/15 — 9/10 = 1 14/30 — 27/30 = 17/30
5) 17/30 + 1/2 = 17/30 + 15/30 = 32/30 = 1 1/15
6) 1 1/15 + 26/35 = 1 17/21
7) 1 17/21 + 8 3/4 = 10 47/84
Ответ: 10 47/84
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