Bonjour

15/18 = (3 x 5) / (3 x 6) = 5/6

6/9 = (3 x 2) / (3 x 3) = 2/3

12/18 = (6 x 2) / (6 x 3) = 2/3

10/12 = (2 x 5) / (2 x 6) = 5/6

21/28 = (7 x 3) / (7 x 4) = 3/4

6/8 = (2 x 3) / (2 x 4) = 3/4

10/15 = (5 x 2) / (5 x 3) = 2/3

20/24 = (4 x 5) / (4x 6) = 5/6

Fractions égales à 2/3

6/9 ; 12/18 ; 10/15

Fractions égales à 3/4

21/28 ; 6/8

Fractions égales à 5/6

15/18 ; 10/12 ; 20/24