Recopier et compléter: 3/5x 45 = ... 3/8x 18 = ... 17 x2/11=... 15 x2/5=… 1/7x7=... 25/100x84=... Bonjour j’ai besoin d’aide svp

Salut

[tex]\rule{7cm}{1mm}[/tex]

3 / 5 × 45 = 15 / 45 = 1 / 3

3 / 8 × 18 = 24 / 18 = 4 / 3

17 × 2 / 11 = 34 / 11

15 × 2 / 5 = 15 / 10 = 1,5

1 / 7 × 7 = 7 / 7 = 1

25 / 100 × 84 =  25 / 8400 = 1 / 336