Fraction Pro - Fraction Calculator with Built-In Math Tutor

🎓 NEW: Show Your Work Feature!

Transform any calculation into a step-by-step visual lesson. Perfect for:

Construction workers on the job
Parents helping with homework
Students learning fractions
Teachers demonstrating methods

See every step with visual fraction bars, area models, and clear explanations in both Traditional and Common Core methods.

Built for Gloves AND Learning

Fraction Pro started as a simple calculator for tradespeople—three big keypads designed for gloved hands. But we realized it could be so much more. Now it's also a powerful learning tool that helps you understand the "why" behind fraction math.

Two Tools in One

For Work: Fast Calculator

Three huge, glove-friendly keypads
Native fraction support
Round to 1/2" through 1/64"
One-tap mm → inches converter
Scrolling calculation history

For Learning: Math Tutor

Visual fraction bars show the math
Traditional & Common Core methods
Step-by-step explanations
Area models for multiplication
Works for ALL operations

📐 Show Your Work - Educational Feature

Press the 📐 button after any calculation to see detailed, visual explanations:

Visual Learning Elements

Fraction Bars: Green filled segments show what fractions actually look like
Box Grids: Area models demonstrate multiplication visually
Place Value Charts: Break down addition and subtraction step-by-step
Grouping Models: Division shown as equal groups with visual blocks

Two Teaching Methods

Switch between tabs to see both approaches:

Traditional Method: The way most adults learned—convert to improper fractions, find common denominators, multiply straight across
Common Core Method: How kids learn today—visual models, breaking numbers into parts, understanding the concepts

All Operations Covered

Addition: Common denominators with visual fraction bars
Subtraction: Shows borrowing/regrouping when needed
Multiplication: Area models break down (whole + fraction) × (whole + fraction)
Division: Keep-Change-Flip explained with reciprocals

Works for Everything

Whole numbers (50 + 12)
Simple fractions (3/4 + 5/8)
Mixed numbers (6 1/8 × 2 2/8)
Decimal to fraction conversion

🔧 Calculator Features

Three Big Keypads

Separate keypads for whole numbers, numerators, and denominators. No mode switching, no confusion—just tap what you need.

Glove-Friendly Design

Large buttons that work with work gloves, winter gloves, or bare hands. Built for job sites, not office desks.

Precision Selector

Click to choose from 1/2", 1/4", 1/8", 1/16", 1/32", or 1/64". See live preview of how each precision rounds your result.

Round Mode Toggle

Choose nearest, round up, or round down. Match your rounding to your project requirements.

MM → Inches Converter

Convert millimeters to fractional inches with one tap. No more looking up conversion charts for metric hardware.

Decimal Support

Enter decimals like 2.375 and convert them to fractions automatically. Works both ways—fractions to decimals too.

Scrolling History

See your last calculations at a glance. No more re-doing math because you forgot what you just calculated.

Handles Huge Numbers

Works with numbers up to 9 quintillion without crashing. Won't overflow like other calculators.

👥 Perfect For

Construction Workers

Fast, accurate fraction math on the job. Built for gloved hands and real-world measurements.

Carpenters & Framers

Crown molding cuts, rafter calculations, stud spacing. Get the math right the first time.

Parents

Help your kids with math homework! See both traditional and Common Core methods side-by-side.

Students

Understand the "why" behind fraction operations. Visual models make complex math clear.

Teachers

Demonstrate both methods to your class. Show visual models that help concepts click.

DIY Enthusiasts

Home improvement projects with precise measurements. Learn while you build.

The ProDirt Difference

Like all ProDirt apps, Fraction Pro follows our core principles:

No Subscriptions: Free calculator forever. Optional one-time purchase for Common Core teaching method.
Privacy First: Your calculations stay on your device. No cloud uploads, no tracking.
Works Offline: No internet required. Use it on the job site, in the classroom, anywhere.
Built by Real People: Designed by someone who actually works with fractions daily and helps kids with homework.

Work smarter. Learn better. Master fractions.

Download Fraction Pro Free