Simplify the fraction by the simplification number.

**Step 1: Calculate the numerator**

To calculate the new *numerator*, divide the numerator of the fraction (63) by the simplification number (9):

Numerator = 63 ÷ 9 = 7

**Step 2: Calculate the denominator**

To calculate the new *denominator*, divide the denominator of the fraction (81) by the simplification number (9):

Denominator = 81 ÷ 9 = 9