Петя Савельев и Миша Павлов любят играть в футбол, а задачки решать не любят.
32:8=4
48:8=6
24:8=3
56:8=7
80:8=10
Удачи)
№ 1. 8 2/25 * (4 1/3 + 2 2/5) - 4/15 + 27/40 : 2 1/4 + 7/15 = 54 679/750
1) 4 1/3 + 2 2/5 = 4 5/15 + 2 6/15 = 6 11/15
2) 8 2/25 * 6 11/15 = 202/25 * 101/15 = 20402/375 = 54 152/375
3) 27/40 : 2 1/4 = 27/40 : 9/4 = 27/40 * 4/9 = (3*1)/(10*1) = 3/10
4) 54 152/375 - 4/15 = 54 152/375 - 100/375 = 54 52/375
5) 54 52/375 + 3/10 = 54 104/750 + 225/750 = 54 329/750
6) 54 329/750 + 7/15 = 54 329/750 + 350/750 = 54 679/750
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№ 2. (19 - 15 4/7) : 16/21 + 6 3/5 - 4 5/6 = 6 4/15
1) 19 - 15 4/7 = 18 7/7 - 15 4/7 = 3 3/7
2) 3 3/7 : 16/21 = 24/7 * 21/16 = (3*3)/(1*2) = 9/2 = 4 1/2
3) 4 1/2 + 6 3/5 = 4 5/10 + 6 6/10 = 10 11/10 = 11 1/10
4) 11 1/10 - 4 5/6 = 11 3/30 - 4 25/30 = 10 33/30 - 4 25/30 = 6 8/30 = 6 4/15
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№ 3. (17 : 3 2/5 - 6 3/8 : 3 3/8) : (1 1/5 - 29/30) = 13 1/3
1) 17 : 3 2/5 = 17 : 17/5 = 17 * 5/17 = 5
2) 6 3/8 : 3 3/8 = 51/8 : 27/8 = 51/8 * 8/27 = 51/27 = 17/9 = 1 8/9
3) 5 - 1 8/9 = 4 9/9 - 1 8/9 = 3 1/9
4) 1 1/5 - 29/30 = 1 6/30 - 29/30 = 36/30 - 29/30 = 7/30
5) 3 1/9 : 7/30 = 28/9 * 30/7 = (4*10)/(3*1) = 40/3 = 13 1/3
2 пары = 4 яблока
2 тройки = 6 яблок
20 - (4+6) = 10
Ответ: 10 яблок осталось в корзине
