Sagot :
Calculer les expressions suivantes :
- 2+ 18/7 = -14/7+18/7=4/7
Calculer les sommes suivantes ;
8/18 + -7/6=8/18-21/18= -13/18
-5/32+-3/8 =-5/32-12/32=-17/32
Calculer les sommes suivantes :
-4+7/3 =-12/3+7/3=-5/3
5/4 - 7 =5/4-28/4=-23/4
Calculer ces expressions :
-4+7/3=-12/3+7/3=-5/3
5/4-7=5/4-28/4=-23/4
Calculer puis simplifier le résultat :
7/24-5/8=7/24-15/24=-8/24=-2/6=-1/3
-5/18-11/6=-5/18-33/18=-38/18=-19/9
11/45- -5/9= 11/45+25/45=36/45=12/15=4/5
-8/7- -10/21=-24/21+10/21=-14/21=-2/3
- 2+ 18/7 = -14/7+18/7=4/7
Calculer les sommes suivantes ;
8/18 + -7/6=8/18-21/18= -13/18
-5/32+-3/8 =-5/32-12/32=-17/32
Calculer les sommes suivantes :
-4+7/3 =-12/3+7/3=-5/3
5/4 - 7 =5/4-28/4=-23/4
Calculer ces expressions :
-4+7/3=-12/3+7/3=-5/3
5/4-7=5/4-28/4=-23/4
Calculer puis simplifier le résultat :
7/24-5/8=7/24-15/24=-8/24=-2/6=-1/3
-5/18-11/6=-5/18-33/18=-38/18=-19/9
11/45- -5/9= 11/45+25/45=36/45=12/15=4/5
-8/7- -10/21=-24/21+10/21=-14/21=-2/3
= - 2+ 18/7
= 4/7
= 8/18 - 7/6
= 8/18 - 21/18
= -13/18
= -5/32 - 3/8
= -5/32 - 12/32
= -17/32
= -4 + 7/3
= -5/3
= 5/4 - 7
= -23/4
= 7/24 - 5/8
= 7/24 - 15/24
= -8/24
= -1/3
= -5/18 - 11/6
= -5/18 - 33/18
= -38/18
= -19/9
= 11/45 + 5/9
= 11/45 + 25/45
= 36/45
= 4/5
= -8/7 + 10/21
= -24/21 + 10/21
= -14/21
= -2/3
= 4/7
= 8/18 - 7/6
= 8/18 - 21/18
= -13/18
= -5/32 - 3/8
= -5/32 - 12/32
= -17/32
= -4 + 7/3
= -5/3
= 5/4 - 7
= -23/4
= 7/24 - 5/8
= 7/24 - 15/24
= -8/24
= -1/3
= -5/18 - 11/6
= -5/18 - 33/18
= -38/18
= -19/9
= 11/45 + 5/9
= 11/45 + 25/45
= 36/45
= 4/5
= -8/7 + 10/21
= -24/21 + 10/21
= -14/21
= -2/3