Write the number over 1
For a whole number, use the number as the numerator and 1 as the denominator
For a decimal, remove the decimal point and place the number over the correct power of 10
Simplify the fraction if possible
For a mixed number, convert the whole number part to an improper fraction
For a percentage, write it over 100 and simplify
For a repeating decimal, set it equal to a variable and solve for the fraction
Check that the fraction matches the original number