Ecris quatre fraction égales a 2/7 8/5 10/11 4/25 prouver vous m'aider svp

Bonsoir,

2/7 = 4/14 = 6/21 = 8/28 = 10/35

8/5 = 16/10 = 24/15 = 32/20 = 40/25

10/11 = 20/22 = 30/33 = 40/44 = 50/55

4/25 = 8/50 = 12/75 = 16/100 = 20/125.