Réponse :
Explications étape par étape
Bonjour
Calcule en détaillant :
-17/24 - 5/36
= (-17 x 3)/(24 x 3) - (5 x 2)/(36 x 2)
= -51/72 - 10/72
= -61/72
3/16 + 1/12
= (3 x 3)/(16 x 3) + (1 x 4)/(12 x 4)
= 9/48 + 4/48
= 13/48
-8/17 + 1/15
= (-8 x 15)/(17 x 15) + (1 x 17)/(15 x 17)
= -120/255 + 17/255
= -103/255
2/5 - 2/15 - 7/12
= (2 x 12)/(5 x 12) - (2 x 4)/(15 x 4) - (7 x 5)/(12 x 5)
= 24/60 - 8/60 - 35/60
= -19/60
