Question

32.calcule.G)3/4+(-1/2)+(-2/5) H)2+3(-4/3)


URGENTE VALENTO 1 PONTO ME AJUDEM PFV

Answer 1

Resposta:

Explicação passo-a-passo:

G)

= 3/4+(-1/2)+(-2/5)

= 3/4 - 1/2 - 2/5

= (5.3 - 10.1 - 4.2)/20

= (15 - 10 - 8)/20

= - 3/20

R : - 3/20

MMC (4,2,5)= 20

4,2,5: 2

2,1,5: 2

1,1,5: 5

1,1,1 = 2.2.5 = 20

H)

= 2+3.(-4/3)

= 2 - 12/3

= 2 - 4

= - 2

R.: - 2