Пошаговое объяснение:
1) 2*1/3 * 1*1/5 = 7/3 × 6/5 = сокращяем 6 и 3 = 14/5 = 28/10 = 2.8
2)Сокращаем до обык. Дроби =
=25/9 × 18/5 = Сокращаем 25 и 5. 18 и 9 = 10
3)5/2 ×8/5 = 4
4) 34/9 × 18/17 = 4
5) 15/2 * 34/15 = 7
6)31/6 * 22 /7 = 31/3 * 11/7 = 341 / 21 = 16*5/21
7)24/7 * 7/3 = 8
8)22/3 * 25/11 = 50 / 3 = 16 * 2/3
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Пошаговое объяснение:
1) 2*1/3 * 1*1/5 = 7/3 × 6/5 = сокращяем 6 и 3 = 14/5 = 28/10 = 2.8
2)Сокращаем до обык. Дроби =
=25/9 × 18/5 = Сокращаем 25 и 5. 18 и 9 = 10
3)5/2 ×8/5 = 4
4) 34/9 × 18/17 = 4
5) 15/2 * 34/15 = 7
6)31/6 * 22 /7 = 31/3 * 11/7 = 341 / 21 = 16*5/21
7)24/7 * 7/3 = 8
8)22/3 * 25/11 = 50 / 3 = 16 * 2/3