Question

calcule o valor das expressões.
a)3/5 - 1 - 2/5
b) 4- 1/10 + 2/5
c)1/2 - (-3/5) + 7/10
d)-2-(-1/2) - 1/8
e) 5/12 + (-1/4) - (+1/6)​

Answer 1

Resposta:

a)4/5

b)43/10

c)9/5

d)-11/8

e)1/2

Explicação passo-a-passo:

a)1/5-5/5

4/5

b)40/10-1/10+4/10

39/10+4/10

43/10

c)5/10-(-6/10)+7/10

5/10+6/10+7/10

18/10

9/5

d)-2-(-1/2-1/8)

-16/8-(-4/8-1/8)

-16/8-(-5/8)

-16/8+5/8)

-11/8

e)5/12+(-3/12)-(2/12)

5/12+1/12

6/12

1/2