Bonjour,
1: 4/3 *-1/5 = -4/15
2: -4/5 *3 = -12/5
3: -4/5 *-1/3 = 4/15
4: 4*-5/3 = -20/3
A: 4*-5/3 = -20/3
B: -4/15
C: 4/15
D: -12/5
1 2 3 4
A B C D
1=B2 = D
3 = C 4= A
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Bonjour,
1: 4/3 *-1/5 = -4/15
2: -4/5 *3 = -12/5
3: -4/5 *-1/3 = 4/15
4: 4*-5/3 = -20/3
A: 4*-5/3 = -20/3
B: -4/15
C: 4/15
D: -12/5
1 2 3 4
A B C D
1=B
2 = D
3 = C
4= A