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Bonjour

Simplifier par 5 les fractions suivantes :

a. 10/25 = (5 x 2) / (5 x 5) = 2/5

b. 50/45 = (5 x 10) / (5 x 9) = 10/9

c. 15/20 = (5 x 3) / (5 x 4) = 3/4

d. 30/50 = (10 x 3) / (10 x 5) = 3/5

e. 75/80 = (5 x 15) / (5 x 16) = 15/16

f. 65/35 = (5 x 13) / (5 x 7) = 13/7

g. 5/15 = (5 x 1) / (5 x 3) = 1/3.