bonsoir,

1.8/1.2 = 18/12 = 3/2

0.06 / 2.4 = 6 /240 = 1/40

2/0.75 = 200/75 =  8/3

0.21/1.4 = 21/140 = 3/20

Bonsoir,

1,8/1,2 = (1,8 x 10) / (1,2 x 10) = 18/12 = (6 x 3) / (6 x 2 = 3/2.

0,06/2,4 = (0,06 x 100) / (2,4 x 100) = 6/240 = (6 x 1) / (6 x 40) = 1/40.

2/0,75 = (2 x 100) / (0,75 x 100) = 200/75 = (25 x 8) / (25 x 3) = 8/3.

0,21/1,4 = (0,21 x 100) / (1,4 x 100) = 21/140 = (7 x 3) / (7 x 20) = 3/20.