About Us

Common Denominator Calculator exists to make finding a common denominator obvious: type your fractions, see the LCD, and view equivalents in a click — no clutter.

What the tool does

• Accepts simple fractions (n/d) and mixed numbers (W n/d)
• Computes the least common denominator and converts both fractions to that denominator
• Step-by-step mode: shows prime factors and how numerators are scaled
• Helpful tips: denominators are positive, negatives move to the numerator for clarity
• Share result to copy a tidy summary

What I care about

• Accuracy first. Clear math, clear steps.
• Privacy by default. No accounts required; we keep data collection minimal.
• Speed & clarity. Clean UI that works well on mid-range phones.
• Accessibility. Keyboard-friendly inputs, sensible focus states, readable typography.

What’s next

• Support for 3+ fractions in one view
• Export steps as PNG/PDF/Markdown for homework and lesson plans
• Classroom-friendly print view with large numerals
• Even better keyboard navigation and dark mode

Say hello

Have feedback or a feature idea? I’d love to hear it. The best way to reach me is the contact page. Your notes help keep the tool genuinely useful.