Question

efetue os cálculos das frações: (a) 3/6+2/6=. (b) 2/7+1/7+5/7= (c) -2/7-1/7= (d)5/3+1/6= (e) 6/4-2/3= (f) 5/3×2/7 (g)5/7:2/3= (h)2/9:4/7 (i) 3/5+1/2×2/4=​

Answer 1

Resposta:

Explicação passo-a-passo:

(a) 3/6+2/6=

3+2/6 = 5/6

(b) 2/7+1/7+5/7=

2+1+5/7 =8/7

(c) -2/7-1/7=

-2-1/7= -3/7

(d)5/3+1/6=

10+1/6= 11/6

(e) 6/4-2/3=

18-8/12= 10/12

(f) 5/3×2/7 =

10/21

(g)5/7:2/3=

5/7 x 3/2 =

15/14

(h)2/9:4/7 =

2/9 x 7/4=

14/36

(i) 3/5+1/2×2/4=

3/5 + 2/8=

24 + 10/40=

34/40