Réponse :
Explications étape par étape
Bonjour,
A)
7/3 * -9/4 = -63/12
2/3 -63/12 = 8/12 - 63/12 = -55/12
B)
2-5/8 = 16/8 -5/8 = 11/8
(11/8)/3/4 = 11/8 * 4/3 = 44/24 = 22/12 = 11/6
c)
4/5 -2= 8/10 - 20/10 = -12/10 = -6/5
3/4 - 2/3 = 9/12 - 8/12 =1/12
-6/5 *1/12 = -6/60= -1/10
d)
(5/3)/(10/16) = 5/3 * 16/10 = 80/30 = 8/3
2/13 -8/3 = 6/39 - 104/39= - 98/ 39
