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.
