Выполните умножение: 1) 9 3/7 х 5/22 2) 6 3/8 х 16/17 3) 19 1/2 х 1 5/9 4) 2 8/11 х 5 2/15 5) 2 2/3 х 1 1/24 х 5 2/5

1) 9 3/7 * 5/22 = (9 * 7 + 3)/7 * 5/22 = (63 + 3)/7 * 5/22 = 66/7 * 5/22 = (66 * 5)/(7 * 22) = (3 * 5)/7 = 15/7.

Ответ: 15/7.

2) 6 3/8 * 16/17 = (6 * 8 + 3)/8 * 16/17 = (48 + 3)/8 * 16/17 = 51/8 * 16/17 = (51 * 16)/(8 * 17) = 3 * 2 = 6.

Ответ: 6.

3) 19 1/2 * 1 5/9 = (19 * 2 + 1)/2 * (1 * 9 + 5)/9 = (38 + 1)/2 * (9 + 5)/9 = 39/2 * 14/9 = 91/3.

Ответ: 91/3.

4) 2 8/11 * 5 2/15= (2 * 11 + 8)/11 * (5 * 15 + 2)/15 = 30/11 * 77/15 = 14.

Ответ: 14.

5) (2 * 3 + 2)/3 * (24 + 1)/24 * (5 * 5 + 2)/5 = 8/3 * 25/24 * 27/5 = 15.

Ответ: 15.