Fraction Calculator Pro is the most precise fraction calculator in your pocket — built for students, tradespeople, engineers, and anyone who works with fractions daily.
Whether you're measuring lumber, calculating tile cuts, splitting recipes, or checking homework, Fraction Calculator Pro handles every calculation exactly — no rounding errors, no guessing.
CORE CALCULATOR
• Add, subtract, multiply, and divide fractions and mixed numbers.
• Enter whole numbers, numerators, and denominators separately with clear Whole / Num / Den controls.
• Results are instantly simplified and shown as proper fractions or mixed numbers.
• Chain operations — after pressing =, tap any operator to keep calculating from the result.
• Toggle the decimal equivalent on or off with the eye icon.
STEP-BY-STEP EXPLAIN
• Tap "Explain" after any result to see every step of the solution.
• Converts to improper fractions, finds common denominators, adds numerators, simplifies — all shown clearly.
• Great for students learning fraction math or anyone who wants to verify their work.
SESSIONS & QUOTE MODE.
• Create labeled calculation sessions (e.g. "Lobby", "Windows", "Doors").
• Label each individual calculation for easy reference.
• Export complete sessions as a professional PDF document or CSV spreadsheet.
• Perfect for contractors, glaziers, carpenters, and tradespeople building material quotes on the job.
HISTORY.
• Every calculation is saved automatically.
• Browse and review past calculations going back up to 2 weeks.
• Project-based history lets you group calculations by date or custom project.
HOW TO USE.
1.Tap number keys to enter a whole number.
2.Tap a/b to switch to fraction mode — enter numerator, tap a/b again for denominator.
3.Choose an operator (+, −, ×, ÷).
4.Enter the second number the same way.
5.Press = to get an instantly simplified result.
6.Tap "Explain" to see the full solution, or "Decimal" to see the equivalent.
No ads. No subscriptions. Just fast, precise fraction math.