Question

calcule o valor da expressão a) -3/5+7/8-1+11/10 b) 4/9-5/6-2/3+3/2

Answer 1

Resposta:

a) 5/8

b) 4/9

Explicação passo-a-passo:

a) -3/5+7/8-1+11/10

MMC de 5,8,10 = 40

(-24 + 35 - 40 + 44) / 40 = 15/40 = 5/8

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

MMC de 9, 6, 3, 2 = 18

(8 - 15 - 12 + 27) / 18 = 8/18 = 4/9