Question

Calcular o valor
por favor me ajudem

Answer 1

Resposta:

Explicação passo-a-passo:

a) 1 - 3/4 = 4/4 - 3/4 = 1/4.

i) 1/2 + (-3/10) + 1/6 = 1/2 - 3/10 + 1/6 = mmc(2,6,10)=30

1/2 - 3/10 + 1/6 = 15/30 - 9/30 + 5/30 = 11/30.

e) 7/3 + 2 - 1/4 = mmc(2,3,4)=12

28/12 + 24/12 - 3/12 = 49/12.

h) 2/3 - 1/2 - 5 = mmc(2,3)=6

4/6 - 3/6 - 30/6 = - 29/6.

l) 3/4 + 2/10 - 5/2 - 5/10

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

3/4 + 1/5 - 6/2 =   mmc(2,4,5)=20

15/20 + 4/20 - 60/20 = - 41/20.