Bonjour à tous, et merci pour votre aide SVP. Calculer sous forme fractionnaire et simplifier 1/4+11/4= 2/3+5/6= 3/4-5/6= 4/7-3/4= 5/6+5/12= 8/5-1/15= 1/6-1/5=

Bonjour,

1/4+11/4=  12/4 = 3

2/3+5/6=  4/6 + 5/6 = 9/6 = 3/2

3/4-5/6=   18/24 - 20/24 = -2/24 = -1/12

4/7-3/4=  16/28 - 21/28 = -5/28

5/6+5/12=  10/12 + 5/12 = 15/12 = 5/4

8/5-1/15=  24/15 - 1/15 = 23/15

1/6-1/5=  5/30 - 6/30 = -1/30

5/7+3/2= 10/14 + 21/14 = 31/14

Bonjour

1/4+11/4= 12/4 = 3

2/3+5/6= 4/6 + 5/6 = 9/6 = 3/2

3/4-5/6= 9/12 -10/12 = -1/12

4/7-3/4= 16/28 -21/28 = -5/28

5/6+5/12= 10/12 + 5/12 = 15/12 = 5/4

8/5-1/15= 24/15 -1/15 = 23/15

1/6-1/5=5/30 -6/30 = -1/30

5/7+3/2= 10/14 + 21/14 = 31/14