22.5% = 0.225 = 9/40 in its lowest terms
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Expressed as a proper fraction in its simplest form, 22.5 percent is equal to 9/40 or nine fortieths.
Expressed as a decimal fraction, 225 percent is equal to 2.25.
225% = 9/4o
225% =21/42.25
225/360 or 45/72