Calculer puis simplifier si possible A)3/7 B)7/3-5/12 C)3/35+3/5 D)7/9-25/54 E)29/40-3/10 F)2+3/5 G)3-7/4 H)5/6+5 merci beaucoup en avance et bonne soirée ​

Bonsoir,

A)3/7

B)7/3-5/12

= 28/12 -5/12

= 23/12

C)3/35+3/5

3/35 + 21/35

= 24/35

D)7/9-25/54

= 42/54  -25/54

= 17/54

E)29/40-3/10

= 29/40 - 12/40

= 17/40

F)2+3/5

10/5 + 3/5

= 13/5

G)3-7/4

= 12/4 -7/4

= 5/4

H)5/6+5

5/6 + 30/6

= 35/6