Question

Efetue as adições a)(+2/5)+(-1/3)=

b)(-2/3)+(-5/6)=

c)(+3/5)+(-1/3)+(-2/5

me ajudemnm urgencia​

Answer 1

Resposta:

a) 1/15

b) -9/6

c) -2/15

Explicação passo-a-passo:

a) (+2/5)+(-1/3) = 2/5-1/3 = 6/15-5/15 = 6-5/15 = 1/15

b) (-2/3)+(-5/6) = -2/3-5/6 = -4/6-5/6 = -4-5/6 = -9/6

c)(+3/5)+(-1/3)+(-2/5) = 3/5-1/3-2/5 = 9/15-5/15-6/15 = 9-5-6/15 = -2/15