Fraction to Decimal Calculator
Convert any fraction to its decimal equivalent instantly — handles terminating and repeating results.
How it works
- 1Enter the numerator (top number) and denominator (bottom number) of your fraction.
- 2The calculator divides numerator ÷ denominator and displays up to 6 decimal places.
- 3If the denominator is 0 the result is undefined; any other inputs — including negatives — are valid.
Use cases
- Converting recipe measurements such as 3⁄8 cup to a decimal for a digital scale.
- Checking whether a fraction like 1⁄7 produces a repeating or terminating decimal.
- Simplifying grade calculations where scores are expressed as fractions.
Frequently asked questions
What is the difference between a terminating and a repeating decimal?
A terminating decimal ends after finitely many digits (1 ÷ 4 = 0.25). A repeating decimal has digits that recur infinitely (1 ÷ 3 = 0.333…). It terminates only when the denominator’s prime factors are just 2s and 5s; any other prime causes repetition.
Why is dividing by zero undefined?
No number multiplied by 0 can equal a non-zero numerator, so n ÷ 0 has no value and is left undefined.
Can I enter negative numbers or decimals?
Yes. The calculator accepts any real number for both fields. A single negative gives a negative result; two negatives cancel to a positive, following standard division rules.
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