Sagot :
bonjour,
4/3 * 9/14 = (9 * 4)/(14 * 3) = ........
(55/6 - 5/2) : 20 = (55/6 - 15/6) : 20 = 40/6 * 1/20 = (40 * 1)/(6 * 20) = ......
(25/14 - 5/14) * (4/5 + 16/15) = 20/14 * (12/15 + 16/15) = 20/14 * 28/15 = (20 * 28)/(14 * 15) = ..........
5 * 9/10 - 7/10 = 45/10 - 7/10 = 38/10 = 19/5.
Réponse :
Bonjour
Explications étape par étape
4/3*(3/14+6/14)
4. 5/14+6/14)/3
=6/7
=0.85714285714286
(55/6 - 5/2) : 20
(55/6-5/2)/20
=1/3
=0,3
(25/14 - 5/14) x (4/5 + 16/15)
((25/14-5/14).(4/5+16/15))
=8/3
=2.6666666666667
5 x 9/10 -7/10
(5.9-7/10)
=19/5
=3,8
Bonne journée
