Question

2) Resolva as seguintes multiplicações e divisões de frações:

a) 5/3x2/7
b) 5/3:2/7
c) 49/15 x 25/14 x 6/35
d) 3: 4/3 e) 2/3: 6
f) 3/5: 1/3
g) 8+ 3 x 1/5
h) 7-3 (5/6 - 2/3)

Answer 1

Resposta:

a) (5/3) * (2/7) = 10/21

b) (5/3)/(2/7) = (5/3)*(7/2) = 35/6

c) (49/15) * (25/14) * (6/35) = (25/15) * (49/14) * (6/35)

   (5/3) * (7/2) * (6/35) = (35/6) * (6/35) = 1

d) 3/(4/3) = 9/4

e) (2/3)/6 = 2/18 = 1/9

f) (3/5)/(1/3) = 9/5

g) 8 + 3/5 = 43/5

h) 7 - 3*(5/6 - 4/6) = 7 - 3/6 = 7 - 1/2 = 13/2