Verified answer

Пошаговое объяснение:

№3

1) -3/4 - 1/6 = -9/12 - 2/12 = -11/12

2) -11/12 : (-1 3/8) = -11/12 : (-11/8) = -11/12 * (-8/11) = -1/3 * (-2/1) = 2/3

№4

1) 1/4 - 5/18 = 9/36 - 10/36 = -1/36

2) -1/36 * 36 = -36/36 = -1

Ответ:

Пошаговое объяснение:

3)   (-3/4 - 1/6) : (-1 3/8) = 2/3

1) -3/4 - 1/6 = -9/12 - 2/12 = -11/12

2) -11/12 : (-1 3/8) = -11/12 : (-11/8) = -11/12 *(-8/11) = 2/3

4)    (1/4 - 5/18) * 36 = -1

1) 1/4 - 5/18 = 9/36 - 10/36 = -1/36

2) -1/36 * 36 = -36/36 = -1