Respostas
respondido por:
2
A) 2/5 = 4/10 = 40/100
2/5 . 5/5 = 10/25
2/5 . 2/2 = 4/10
2/5 . 20/20 = 40/100
B)
3/4 = 6/8 = 60/80
3/4 . 2/2 = 6/8
3/4 . 10/10 = 30/40
3/4 . 3/3 = 9/12
C)
3/8 = 6/16 = 30/80
3/8 . 2/2 = 6/16
3/8 . 10/10 = 30/80
3/8 . 4/4 = 12/32
D)
18/40 = 9/20 = 90/200
18/40 (:2)/(:2) = 9/20
18/40 . 2/2 = 36/80
18/40 . 5/5 = 90/200
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