Question

Resolva:
a - 2/4 + 3/4
b - 8/10 - 8/10
c - 5/8 + 3/7
d - 3/4 * 7/10
e - 12/5 ÷ 6/7

Answer 1

Resposta:

a - 5/4

b - 0

c - 59/56

d - 21/40

e - 84/30

Explicação:

a - 2/4+3/4 =

2+3/4 =

5/4

b - 8/10-8/10 =

8-8/10 =

0/10 =

0

c - 5/8+3/7 =

(56÷8×5)+(56÷7×3)/56 =

(7×5)+(8×3)/56 =

35+24/56 =

59/56

d - 3/4×7/10 =

3×7/4×10 =

21/40

e - 12/5÷6/7 =

12/5×7/6 =

12×7/5×6 =

84/30