one seventh. because you can divide 63 by nine and nine by nine.
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63 ÷ 9 = 7 81 ÷ 9 = 9 Thus giving 7 over 9 as the simplest form
9/109/10
It is: 14/63 = 2/9
7/11 63/9 = 7 99/9 = 11
Expressed as a proper fraction in its simplest form, by dividing the numerator and denominator by 7, 28/63 is equal to 4/9 or four ninths.