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x/100 = 39/52 // - 39/52
x/100-(39/52) = 0
x/100-3/4 = 0
1/100*x-3/4 = 0 // + 3/4
1/100*x = 3/4 // : 1/100
x = 3/4/1/100
x = 75
x = 75
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