Question

(-2/5)+(-3/4)????

(-3/5)+(+3/6)????

Answer 1

Soluciones:

(-2/5) + (-3/4) = -2/5 - 3/4 = [(-2 × 4) - (3 × 5)]/(5 × 4) = (-8 -15)/20= -23/20

(-3/5) + (+3/6) = -3/5 + 3/6 = [(-3 × 6) + (3 × 5)]/(5 × 6) = (-18 + 15)/30 = -3/30 = -1/10