Fraction Operations Practice
An endless supply of never-repeating fraction problems with instant feedback. Add and subtract with like and unlike denominators, multiply with canceling, divide with keep-change-flip, and work with mixed numbers — one problem at a time.
1 Practice
Type your answer and press Check answer (or Enter). A wrong answer earns a hint first; a second miss walks you through the full solution.
How to enter answers
- Fraction: type
a/b, like11/12. Any equivalent form counts, and mixed numbers like1 1/2are accepted too. - Always simplify — but if you forget, an equivalent unsimplified answer still counts.
2 What you’ll practice
Every problem is generated fresh from 10 templates — a problem never repeats until its whole pool is used up.
Add & subtract
Like denominators (add the tops) and unlike denominators (rename with the LCD first).
Multiply & divide
Straight across with canceling; keep-change-flip for division.
Mixed numbers & words
Convert to improper fractions first; recipes and servings in word problems.
3 Watch out for these
The three mistakes students make most often with fraction operations.
Wrong: 1/2 + 1/3 = 2/5. Right: 1/2 + 1/3 = 5/6. Rename to a common denominator; add only the tops.
Wrong: 3/4 ÷ 2/5 = 6/20. Right: 3/4 × 5/2 = 15/8. Keep, change, flip.
Wrong: leaving 6/15. Right: 6/15 = 2/5. Make “simplify last” a reflex.