Question

calcule
a) 1/2 - ( 1/4- 1/8 ) =

b) ( 1/2 - 1/4 ) - 1/8

c) (1/2 - 1/3 ) - ( 1/6 - 1/10 ) =

Answer 1

Resposta:

a) )

1/2-(1/4-1/8)

1/2-1/8

3/8

b))

(1/2-1/4)-1/8

1/4-1/8

1/8

c)(1/2-1/3)-(1/6-1/10)=

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

15/30 - 10/30 - 5/30 + 3/30 = 3/30 = 1/10

Espero te ajudado