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bonjour ! peut tu m’aidez j’y arrive pas il faut détailler

a) 7/10 + 1/10 = ?

b) 7/4 - 1/4 = ?

c) 7/15 + 3/15 =?

d) 5/8 - 1/8 =?

e) 7/9 - 1/9 = ?

Sagot :

A) 7/10 + 1/10 = 7+1/10 = 8/10 = 4/5

B) 7/4 - 1/4 = 7-1/4 = 6/4 = 3/2

C) 7/15 + 3/15 = 7+3/15 = 10/15 = 2/3

D) 5/8 -1/8 = 5-1/8 = 4/8 = 1/2

E) 7/9 - 1/9 = 7-1/9 = 6/9 = 2/3