Use divisibility rules to simplify the fraction completely. Divisibility Rules:
63
A number is divisible by...
111
2, if the number is even
3. if the sum of the digits is divisible by 3,
4. If the last two digits are divisible by 4,
5, if the final digit is 5 or 0.
6, if the number is divisible by both 2 and 3.
7, if when you double the final digit then subtract it from the number
made by the other digits, the result is divisible by 7.
8, if the final three digits are divisible by 8
9, if the sum of the digits is divisible by 9,