Question

URGENTE, ME AJUDEM !!

1/2:(2/3+3/4)=
(1/3+1/2):5/6=
1/2.(2/3+3/4)=
(5/7×2/3):1/6=
3/2-2/5)+(5/4-2/3)=
1+(1/2-1/5)-(7/4-5/4)=
(7/8-5/6)+(8/9-7/9)=​

Answer 1

Resposta:

1/2:(2/3+3/4)= 0,35

(1/3+1/2):5/6= 1,66

1/2.(2/3+3/4)= 0,705

(5/7×2/3):1/6= 0,781

3/2-2/5)+(5/4-2/3)= 1,60

1+(1/2-1/5)-(7/4-5/4)= 0,8

(7/8-5/6)+(8/9-7/9)=​0,155

Explicação passo-a-passo:

1/2:(2/3+3/4)=

0,5 : (0,66666667 + 0,75)

0,5 : 1,41666667 = 0,35

---

(1/3+1/2):5/6=

(0,33+0,5) : 0,833

0,83 : 0,5 = 1,66

---

1/2.(2/3+3/4)=

0,5 . (0,66+0,75)

0,5 . 1,41 = 0,705

---

(5/7×2/3):1/6=

(0,71 . 0,66) : 0,16

0,4686 : 0,16 = 0,781

---

(3/2-2/5)+(5/4-2/3)=

(1,5-0,4)+(1,25-0,66)

1,1+0,59=1,60

---

1+(1/2-1/5)-(7/4-5/4)=

1+(0,5-0,2)-(1,75-1,25)

1+0,3-0,5=0,8

---

(7/8-5/6)+(8/9-7/9)=​

(0,875-0,83)+(0,88-0,77)

0,045+0,110=0,155