-19/42+-9/16+-11/42+5/16

Question

-19/42+-9/16+-11/42+5/16

Answer 1

Группируем (-19/42-11/42) + (-9/16+5/16)= - 30/42 - 4 /16 = - 5/7 - 1/4 = - 20/28 - 7/28 = -27/28