Question

выполните все варианты пожалуйста)​

Answer 1

Ответ:

Пошаговое объяснение:

24 + (-6) = 18

2 1/6 + (-3 2/3) = 13/6 - 11/3 = (13-22) / 6 = - 9/6 = - 3/2 = - 1 1/2

- 2/9 + 14/11 = (-22+126) / 99 = 104/99 = 1 5/99

2.

(3/7 + (-8/7)) + 3 6/7 = 3 1/7

3/7 + (-8/7) = (3-8) / 7 = - 5/7

-5/7 + 3 6/7 = -5/7 + 27/7 = (-5+27) / 7 = 22/7 = 3 1/7

3.

(2,2 + (-1/3)) + (-3 1/15) =

2,2 + (-1/3) = 11/5 - 1/3 = (33-5) / 15 = 28/15

28/15 + (-3 1/15) = 28/15 - 46/15 = (28-46) / 15 = - 18/15 = - 1 1/5