Bonjour
5 x 2/3 = 10/3
15/36 x 48/20 = 720/720 = 1
- 15/24 + 3/8 = - 15/24 + (3 x 3) / (8 x 3) = - 15/24 + 9/24 = - 6/24 = (6 x - 1) / (6 x 4) = - 1/4
3/7 - 4/5 = (3 x 5) / (7 x 5) - (4 x 7) / (5 x 7) = 15/35 - 28/35 = - 13/35
6/11 - 2 = 6/11 - (2 x 11) / (1 x 11) = 6/11 - 22/11 = - 16/11
7/2 : 5/3 = 7/2 x 3/5 = 21/10.
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Bonjour
5 x 2/3 = 10/3
15/36 x 48/20 = 720/720 = 1
- 15/24 + 3/8 = - 15/24 + (3 x 3) / (8 x 3) = - 15/24 + 9/24 = - 6/24 = (6 x - 1) / (6 x 4) = - 1/4
3/7 - 4/5 = (3 x 5) / (7 x 5) - (4 x 7) / (5 x 7) = 15/35 - 28/35 = - 13/35
6/11 - 2 = 6/11 - (2 x 11) / (1 x 11) = 6/11 - 22/11 = - 16/11
7/2 : 5/3 = 7/2 x 3/5 = 21/10.