Add, subtract, multiply, divide, simplify, convert fractions to decimals and percentages. Perfect for students, teachers, and anyone working with fractions.
Divide the numerator by the denominator. For example, 3/4 = 3 ÷ 4 = 0.75
Convert to decimal first, then multiply by 100. For example, 3/4 = 0.75 = 75%
Divide numerator by denominator. The quotient is the whole number, remainder is new numerator.
Find the Greatest Common Divisor (GCD) of numerator and denominator, divide both by it.
Find the Least Common Multiple (LCM) of denominators to add or subtract fractions.
Multiply numerators together and denominators together. Simplify if possible.
You have 3/4 of a pizza and eat 1/3 of what's left. How much pizza remains?
A recipe calls for 2/3 cup of flour but you want to make 1.5 times the recipe.
You need 3/8 of an inch but your ruler shows 16ths. What's the equivalent?
In a survey, 5/8 of respondents preferred option A. What percentage is this?
An item is 1/3 off. If the original price was $90, what's the sale price?
A runner completes 2/5 of a race. If the race is 10 miles, how far has she run?
Add, subtract, multiply, divide, simplify, and convert fractions with ease.
Work with proper fractions, improper fractions, mixed numbers, decimals, and percentages.
See fractions visualized as pie charts or bars to better understand proportions.
Results are automatically simplified to lowest terms using the GCD algorithm.
See detailed breakdowns of calculations showing each step of the process.
All calculations are done locally in your browser. Your data never leaves your device.