Find the GCF of the numerator and the denominator and divide them both by it. If the GCF is 1, the fraction is in its simplest form.
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Lowest terms.
When a fraction is in lowest terms, it cannot be reduced any lower because there are no factors common to both the numerator and denominator.
0.63 in a fraction reduced to its lowest term is 63/100
If the numerator and the denominator of a fraction have a GCF of 1, the fraction is in its simplest form or lowest terms; it cannot be reduced any further.
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