L'exercice 2 Page 120 Sesamath cycle 4 svp Merci !​

Réponse :

Explications étape par étape

Bonjour,

x-5/4 = 4/3

x= 4/3 + 5/4 = 16/12 +15/12 = 31/12

x+ 7/3 =5/7

x= 5/7 -7/3 = 15/21 - 49/21 = -34/21

x-5/8 = 3/12

x= 3/12 +5/8 = 6/24 + 15/24 = 21/24 = 7/8

1/3 -x = -2/9

1/3 +2/9 = x

3/9 +2/9 = x

x= 5/9

5/18 -x =11/45

5/18 -11/45 = x

25/90 -22/90 = x

x= 3/90 = 1/30

x-12/25 = -11/15

x= -11/15 +12/25

x=  -275/ 375 + 180/375 = -95/375 = -19/75