Question

se a= 1-1/2+1/3 ,b=2/3+1/4 e x=a/b então:

Answer 1

Boa tarde Perletto

a = 1 - 1/2 + 1/3
a = 6/6 - 3/6 + 2/6 = 8/6 - 3/6 = 5/6 

b = 2/3 + 1/4
b = 8/12 + 3/12 = 11/12 

x = a/b = (5/6)/(11/12) = (5/6)*(12/11) = 60/66 = 10/11