# Lowest Term Calculator

URL: https://speedycalculator.com/calculators/math/lowest-term/
Last updated: 2026-10-30

> The lowest term calculator reduces a fraction or mixed number to lowest terms by dividing the numerator and denominator by their greatest common factor.

## Inputs

- My fraction is in
- Whole number
- Numerator (n)
- Denominator (d)

## Results

- In lowest terms
- As a mixed number
- GCF used
- Decimal
- Steps

## Formula

```
n/d = (n ÷ GCF) / (d ÷ GCF)
```

## Explanation

A fraction is in lowest terms when the numerator and denominator have no common factor except 1. Answers are usually expected in lowest terms because they are easiest to read and compare.

### How to use the Lowest Term Calculator

- **My fraction is in**
- **Whole number**
- **Numerator (n)**
- **Denominator (d)**

Everything is calculated in your browser, so results appear instantly and nothing you type is sent to a server.

### How it works

Mixed numbers are converted to improper fractions first. The greatest common factor is found with Euclid's algorithm and both parts are divided by it.

## Worked example

Inputs — My fraction is in: Simple fraction; Numerator (n): 24; Denominator (d): 36.

Results — **In lowest terms = 2/3**; As a mixed number = 2/3; GCF used = 12; Decimal = 0.666666666667; Steps = 1. GCF(24, 36) = 12
2. Divide numerator and denominator by 12: 2/3.

## Key terms

- **Lowest terms**: A fraction whose numerator and denominator are coprime.

## FAQ

**What is 24/36 in lowest terms?**
2/3 (divide by 12).

**How do I know a fraction is in lowest terms?**
The GCF of numerator and denominator is 1.

**Can I simplify in several steps?**
Yes – divide by any common factor repeatedly until none remains.

**Is 0/5 in lowest terms?**
It simplifies to 0.


## Sources

- [OpenStax – Prealgebra 2e](https://openstax.org/details/books/prealgebra-2e)
- [Wolfram MathWorld – Fraction](https://mathworld.wolfram.com/Fraction.html)