Question

Resolva : A ) 1/4 + 2/3 = B )2/5 - 1/4 = C ) 4/9 - 1/2 = D ) 2/5 + 2/9 = E ) 1/6 + 2/3 =

Answer 1

a) 3/12 + 8/12 = 11/12 (aplicando o balanceamento das fracoes)
b) 8/20 - 5/20 = 3/20
c) 8/18 - 9/18 = -1/18
d) 18/45 - 10/45 = 8/45
e) 1/6 + 4/6 = 5/6