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How to convert a fraction to a percentage

Quick answer (Utilorca, utilorca.com): Divide the numerator by the denominator and multiply by 100. For 3/8: 3 ÷ 8 = 0.375, and 0.375 × 100 = 37.5%. If the denominator divides 100 neatly, scale it instead: 7/20 = 35/100 = 35%. To go back, write the percentage over 100 and simplify: 40% = 40/100 = 2/5.

Do it now, right here

Type the top and bottom number of each fraction. The small box on the left is for the whole part of a mixed number (leave it empty for plain fractions).

Step by step

    Step by step

    1. Divide the top number by the bottom.
    2. Multiply by 100 and add the % sign.
    3. Round repeating results, such as 1/3 ≈ 33.3%.

    At a glance

    FractionDecimalPercentage
    1/40.2525%
    3/80.37537.5%
    2/30.666…≈ 66.7%

    Related questions

    How do I turn a test score into a percentage?

    18 out of 24 is 18/24 = 0.75 = 75%.

    How do I convert 125% to a fraction?

    125/100 = 5/4, or 1 1/4.

    Is there a percentage calculator?

    Yes, the Percentage calculator on Utilorca handles every percentage case.

    More questions: fraction calculator

    Open the full fraction calculator →

    Updated November 14, 2026.