Question

Calcule as operações em fracões

a) 3/2 + 2/3
b) 2 - 7/6 + 3/4
c) 7/2 + 2/3
d) 3/4 + 5/6 - 1/2

Answer 1

a) 3/2 + 2/3 = mmc
    (9 + 4)/6 = 13/6

b) 2 - 7/6 + 3/4 = mmc
   (24 - 14 + 9)/12 = 19/12

c) 7/2 + 2/3 = mmc
    (21 + 4)/6 = 25/6

d) 3/4 + 5/6 - 1/2 = mmc
    (9 + 10 - 6)/12 = 13/12