Free fraction calculator. Add, subtract, multiply and divide fractions and mixed numbers instantly. Shows step-by-step working. Simplifies fractions automatically and converts between fractions and decimals. Perfect for students from primary school to university.
Enter a fraction or mixed number (e.g. 2 4/8) to reduce to lowest terms.
Type any expression mixing decimals and fractions — e.g. 0.75 + 1/2 or 2/3 × 0.5 − 1/4
Supported operators: + − × * ÷ /
Our fraction calculator handles all basic fraction operations. Enter the numerators and denominators, choose your operation, and click Calculate. Results are shown in simplified form with the decimal equivalent and optional step-by-step working.
To add fractions, find the least common denominator (LCD). The calculator does this automatically, converts both fractions, then adds the numerators. Example: 1/4 + 1/6 = 3/12 + 2/12 = 5/12.
Subtraction works like addition — find the LCD, convert, then subtract the numerators. Results are automatically simplified.
Multiply numerators together and denominators together: (a/b) × (c/d) = (a×c)/(b×d), then simplify.
Dividing by a fraction equals multiplying by its reciprocal: (a/b) ÷ (c/d) = (a/b) × (d/c).
Fractions are taught in schools across every country — from primary school through to GCSE, A-Level, IGCSE, SAT, ACT and university-level maths. Our free fraction calculator handles all the operations you need: adding fractions, subtracting fractions, multiplying fractions and dividing fractions — including mixed numbers and improper fractions.
To add fractions with different denominators, find the lowest common denominator (LCD), convert both fractions, then add the numerators. For example: ½ + ⅓ → LCD is 6 → 3/6 + 2/6 = 5/6. This calculator does all of that automatically and shows you every step.
A mixed number (like 2½) combines a whole number and a fraction. An improper fraction has a numerator larger than the denominator (like 5/2). This calculator accepts both formats and converts between them automatically in the results.
Every result is also shown as a decimal equivalent — useful when you need to enter a fraction value into another calculator or compare fractions easily. For example, ¾ = 0.75, ⅓ ≈ 0.333.