4.5% = 4.5/100 = 0.045
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To convert a fraction to percent, multiply by 100 % 9/45 = 9/45 x 100 % = 20 %
45% = 45/100 in fraction
45% = 9/20 as a fraction in its lowest terms
Divide the percent by 100 and then simplify the resulting fraction.
45 percent is 45/100, which simplifies to 9/20