svp aider moi ces pour aujourd hui

18 x 2/3 = 36/3 = 12
 28/7 x 5 = 140/7 = 20
3.5 x 9/5 = 31.5/5 = 6.3
8/48 x 6 = 48/48 = 1
120 x 5/6 = 600/6 = 100
7/2 x 2.8 = 19.6/2 = 9.8