Question

решить.........................​

Answer 1

Пошаговое объяснение:

-17 + (-15) = -17 - 15 = -(17 + 15) = -32

-99 + (-11) = -99 - 11 = -(99 + 11) = -110

-35 + (-42) = -35 - 42 = -(35 + 42) = -77

-1/7 + (-3 2/7) = -1/7 - 3 2/7 = -(1/7 + 3 2/7) = -3 3/7

-4 2/9 + (-2/3) = -4 2/9 - 2/3 = -(4 2/9 + 2/3) = -(4 2/9 + 6/9) = -4 8/9