Question

CALCULE E SIMPLIFIQUE O RESULTADO;

A) 2/3 + 4/3 +2/3
B)1/5+7/5+3/5
C)7/3+8/4+2/3
D)5/2-1/7-5/10

17 PONTOS!!!​

Answer 1

Explicação passo-a-passo:

A) 2/3 + 4/3 +2/3=(2+4+2)/4

2/3+4/3+2/3=(6+2)/4

2/3+4/3+2/3=8/4

2/3+4/3+2/3=2

B)1/5+7/5+3/5 =(1+7+3)/5

1/5+7/5+3/5=(8+3)/5

1/5+7/5+3/5=11/5

C)7/3+8/4+2/3=(28+24+8)/12

7/3+8/4+2/3=(52+8)/12

7/3+8/4+2/3=60/12

7/3+8/4+2/3=5

D)5/2-1/7-5/10 =(175-10-35)/70

5/2-1/7-5/10=(165-35)/70

5/2-1/7-5/10=130/70

5/2-1/7-5/10=(130÷10)/(70÷10)

5/2-1/7-5/10=13/7

Answer 2

A)

$\frac{2}{3}+\frac{4}{3}+ \frac{2}{3} = \frac{8}{3}$

B)

$\frac{1}{5}+ \frac{7}{5} + \frac{3}{5} = \frac{11}{5}$

C)

$\frac{7}{3} + \frac{8}{4} + \frac{2}{3} = \frac{28 + 24 + 8}{12} = \frac{60}{12} = \frac{5}{1}$

D)

$\frac{5}{2} - \frac{1}{7} - \frac{5}{10} = \frac{175 - 10 - 35}{70} = \frac{130}{70} = \frac{13}{7}$