Exercice 5 - Effectue les calculs puis simplifie lorsque cela est possible :
A=1/3×-4/5
B=-8/3×3/4×5/7
C=5÷3/4
D=4/9÷(-1/4)
E=9/10÷5/11
merci d'avance
A=1/3×-4/5
B=-8/3×3/4×5/7
C=5÷3/4
D=4/9÷(-1/4)
E=9/10÷5/11
merci d'avance
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Bonjour,
A=1/3×-4/5
1*-4 = -4
3* 5 = 15
=> -4/15
B=-8/3×3/4×5/7
= -24/ 12 * 5/7
= -2 * 5/7
= -10/7
C=5/3/4
= 5*4/3
= 20/3
D=4/9/(-1/4)
= 4/9 * -4
= -16/9
E=9/10/5/11
= 9/10 * 11/5
= 99/50