Question

Помогите пж. Номер 202 (1,2,3)
80 пунктов дам

Answer 1

Пошаговое объяснение:

№1

1) -5/12 + 11/16 = -20/48 + 33/48 = 13/48

2) 13/48 : (-13/72) = 13/48 * (-72/13) = 1/2 * (-3/1) = -3/2 = -1 1/2

№2

1) 9/14 - (-5/21) = 9/14 + 5/21 = 27/42 + 10/42 = 37/42

2) 37/42 : (-2 9/14) = 37/42 : (-37/14) = 37/42 * (-14/37) = 1/3 * (-1/1) = -1/3

№3

1) -4 11/18 - 2 7/12 = -4 22/36 - 2 21/36 = -6 43/36 = -7 7/36

2) -7 7/36 : (-3 1/12) = -259/36 : (-37/12) = -259/36 * (-12/37) = -7/3 * (-1/1) = 7/3 = 2 1/3