Question

Calcule o valor de cada expressão abaixo:

Answer 1

Resposta:

Explicação passo a passo:

a.

2/3x3/4+1/6:5/6=

6/12+1/6.6/5=

6/12 + 6/30=

1/2 + 1/5=

5/10+2/10=

7/10

b.

1:3/2+4/9x3/6=

1/1.2/3+12/54=

2/3+ 12/54=

2/3+2/9=

6/9 +2/9=

8/9

c.

5/9x6/4 -4/9:10/3=

30/36 - 4/9 .3/10=

5/6 - 12/90=

75/90 -12/90=

63/90 = [simplifica por 9]

7/10

d.

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

2/3 + 5/3x2/2=

2/3 + 5/3 x1/1=

2/3+5/3=

7/3

e.

1+{15/4[6/8:(1/2+3/4)]}=

1+{15/4-[6/8:(2/4+3/4)]}=

1+{15/4-[6/8:5/4]}=

1+{15/4-[6/8.4/5]}=

1+{15/4-24/40}=

1+{150/40-24/40}=

1+126/40=

40/40+126/40=

166/40= [simplifica por 2]

83/20

f.

1/10x5/2+1/3:1/9-3=

5/20+1/3.9/1-3=

1/4+9/3-3/1=

3/12+36/12-36/12=

3/12= [simplifica por 3]

1/4