FracConv

Decimal to Fraction Converter

Continued-fraction approximation for accuracy.

Finding the simplest matching fraction

This calculator uses a continued-fraction algorithm — the same method used to find the best small-denominator approximation to any decimal, which is how 0.75 resolves cleanly to 3/4 instead of 75/100.

Where it's genuinely useful

Woodworking and cooking measurements are usually expressed in fractions (⅜ inch, ⅔ cup), while calculators and spreadsheets output decimals — this bridges the two.

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FracConv

Decimal to Fraction Converter

Continued-fraction approximation for accuracy.

Decimal

Fraction

3 / 4

What you entered

Decimal: 0.75

1
Continued-fraction step 1
⌊0.75⌋ = 0= 0/1
2
Continued-fraction step 2
⌊1.3333⌋ = 1= 1/1
3
Continued-fraction step 3
⌊3⌋ = 3= 3/4

Result

Fraction: 3 / 4

0.75 written as a fraction is 3 / 4.

Finding the simplest matching fraction

Where it's genuinely useful

Woodworking and cooking measurements are usually expressed in fractions (⅜ inch, ⅔ cup), while calculators and spreadsheets output decimals — this bridges the two.