To turn a fraction into a percent, divide the numerator by the denominator and multiply by 100. Because "percent" means parts per hundred, the result tells you how many hundredths the fraction is worth — 3/4 is 75 hundredths, or 75%. This calculator returns the percentage, the decimal, and the fraction in lowest terms.
Reviewed: June 20, 2026 · Author: Naveen P N, Founder — AI Calculator · Verified against: exact arithmetic, recomputed in code.
The method
There are two equivalent routes. The first is to divide and scale: 5 ÷ 8 = 0.625, then ×100 = 62.5%. The second is to rewrite the fraction with a denominator of 100, since a percent is just a fraction out of 100: 7/20 × 5/5 = 35/100 = 35%. Both give the same answer; the calculator uses division so it works for any denominator.
Worked examples
5/8:
7/20 (scale to /100):
1/3 (repeating):
When the numerator is bigger than the denominator the percent passes 100 — for example 5/4 = 1.25 = 125%. Denominators built only from 2s and 5s (like 4, 8, 20) give clean terminating percentages; others (like 3 or 7) repeat.
Frequently Asked Questions
Divide numerator by denominator, multiply by 100. 3/4 → 0.75 → 75%.
5 ÷ 8 = 0.625 → 62.5%.
1 ÷ 3 = 0.3333… never ends, so it's 33.33% (or 33⅓%). Denominators with factors other than 2 and 5 repeat.
Yes — when the top exceeds the bottom. 5/4 = 1.25 = 125%.
Write it over 100 and reduce. 35% = 35/100 = 7/20.