Question

01- Resolva as expressoes numericas e simplifique sempre q for preciso:
a) 3+ $\frac{1}{2}$ x $\frac{6}{4}$ - $\frac{3}{4}$ =
b) $\frac{2}{3}$ + $\frac{1}{2}$ ÷ $\frac{1}{3}$ - $\frac{1}{5}$ =
c) $\frac{2}{3}$ + ($\frac{1}{2}$)² + ($\frac{1}{4}$) - ($\frac{1}{4}$) =
d) ($\frac{2}{3}$)² + ($\frac{1}{3}$ + $\frac{5}{9}$) - √$\frac{4}{81}$ =
POR FAVOR TODAS COM CALCULO

Answer 1

Olá Geovanna

a) 

3 + 1/2*6/4 - 3/4 

3 + 6/8 - 3/4 = 3 + 3/4 - 3/4 = 3

b) 

2/3 + (1/2)/(1/3) - 1/5 

2/3 + (1/2)*(3/1) - 1/5 

2/3 + 3/2 - 1/5 

20/30 + 45/30 - 6/30 = (65 - 6)/30 = 59/30 

c)

2/3 + (1/2)² + 1/4 - 1/4 

2/3 + 1/4 = 8/12 + 3/12 = 11/12 

d)

(2/3)² + (1/3 + 5/9) - 2/9 

4/9 + 24/27 - 2/9 

12/27 + 24/27 - 6/27 = 30/27 = 10/9 

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