n 58 aide moi merci!!!

Bonsoir


12/5 x7/3 = 84/15 = 28/5

1/4 x 32/9 = 32/ 36 = 8/9

10.6/7 x 21/2 = 106/70 x 21/2 = 2226/140=159/10

25/0.8 x 3/5 = 250/8 x 3/5 = 750/40 = 75/4