Réponses

2014-03-08T23:26:03+01:00
3/4 + 1/2 + 3/4 = 3/4 + 1 x 2 / 2 x 2 + 3/4 = 3/4 + 2/4 + 3/4 = 8/4 = 4 x 2 / 4 x 1 = 2/1 = 2

3/4 x 1/2
= 3 x 1 = 3/8
                 4 x 2
2014-03-08T23:31:34+01:00
3/4 + 1x2/2x2 + 3x1/4x2

3/4 + 2/4 + 3/8

5/4 + 3/8

5x2/4x2 + 3/8

10/8 + 3/8

13/8