Bonjour
Écrire les nombres en fractions irréductibles.
a) 0,75 = 75/100 = (25 x 3) / (25 x 4) = 3/4
b) 1,5 = 15/10 = (5 x 3) / (5 x 2) = 3/1
c) 0,8 = 8/10 = (2 x 4) / (2 x 5) = 4/5
d) 1,25 = 125/100 = (25 x 5) / (25 x 4) 5 /4
e) 0,125 = 125/1 000 = (125 x 1) / (125 x 8) = 1/8
f) 0,36 = 36/100 = (4 x 9) / (4 x 25) = 9/25.
