Объяснение:

№1

15 * 10 4/15 = 15 * 154/15 = 1 * 154/1 = 154/1 = 154

№2

144 * 2 5/72 = 144 * 149/72 = 2 * 149/1 = 298/1 = 298

№3

1) 82 * 5 1/82 = 82 * 411/82 = 1 * 411/1 = 411/1 = 411

2) 82 * 10 1/41 = 82 * 411/41 = 2 * 411/1 = 822/1 = 822

3) 411 + 822 = 1233

№4

1) 24 * 7 1/24 = 24 * 169/24 = = 1 * 169/1 = 169/1 = 169

2) 24 * 5/12 = 2 * 5/1 = 10/1 = 10

3) 169 + 10 = 179