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A proper fraction is a common fraction that has a numerator that is smaller than the denominator.

The following fractions are examples of proper fractions.

Because the numerator is less than the denominator, the common fraction will always name a number that is less than 1.

For example, notice that 3/6 = 0.5 and 16/40 = 0.4

0.5 and 0.4 are smaller than 1.