Question

1) efetue as expressões indicadas, simplificando se possível.


a) 2/5 : 4/3 =

b) 2/9 : 6/5 =

c) 5 : 4 =

d) 1 1/2 : 2/3 =

Answer 1

a) 2/5 : 4/3 =
2/5 x 3/4 = 6/20 = 3/10

b) 2/9 : 6/5 =
2/9 x 5/6 = 10/54 = 5/27

c) 5 : 4 = 5/4
ou 5 x 1/4 = 5/4

d) 1 1/2 : 2/3 =
3/2 : 2/3 =
3/2 x 3/2 = 9/4