bonjour
1. 180 x 3/4 = 135 L
2. 3/4 = 180 L
4/4 = 240 L
3. 2/5 * 3/8 = 6/40 = 3/20 font du badminton
4. 3 /4 x 12 = 36/4 = 9
5. 1/3 * 2/5 = 2/15
6. 1 - ( 1/4 + 2/3 ) = 12/12 - ( 3/12 + 8/12 ) = 12/12 - 11 /12 = 1 /12
