To convert a decimal to a fraction, follow these steps:

1. Write the Decimal as a Fraction: Place the decimal number over 1 (e.g., 0.75 becomes 0.75/1).

2. Eliminate the Decimal Point: Multiply both the numerator and the denominator by 10 for each digit after the decimal point. For example, to convert 0.75, multiply by 100 to get 75/100.

3. Simplify the Fraction: Find the greatest common divisor (GCD) of the numerator and the denominator and divide both by this number. For 75/100, the GCD is 25, so divide both the numerator and denominator by 25 to get 3/4.

So, 0.75 as a fraction is 3/4.