15/45 = 1/3≈33%, 9/36 = 1/4 = 25%, 45/50 = 9/10 = 90%, 1,5/2 = 3/4 = 75%, 40/200 = 1/5 =0,20 = 20%, 30/120 = 1/4 = 25%, 2/40 = 1/20 =0,05 = 5%, 3000/300 = 10 = 1000%, 50/5 = 10 = 1000%, 1000/40 = 25 = 2500%,

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