Sagot :
Réponse :
Bonjour
Explications étape par étape
-6/7 +3/21 = -6/7 X 3/3 + 3/21 = -18/21 +3/21 = -15/21 : 3/3 = -5/7
7/15 +3/25 = 7/15 X 25/25 +3/25 X 15/15 = 175/375 + 45/375 = 220/375
220/375 : 5/5 = 44/75
2/11 -5/8 = 2/11 X 8/8 -5/8 X 11/11 = 16/88 -55/88 = -39/88
-2 +5/4 = -2 X 4/4 +5/4 = -8/4 +5/4 = -3/4
1- (6/7) + (3/21) = 1
2- (7/15) + (3/25) = environs égale 0.586
3- (2/11) - (5/4) = environs égale -0.44318
4- (-2) + (5/4) = -0.75
2- (7/15) + (3/25) = environs égale 0.586
3- (2/11) - (5/4) = environs égale -0.44318
4- (-2) + (5/4) = -0.75