Simplify fractions calculator
Calculator
The calculator needs JavaScript. The tables below give the same numbers for common cases.
How it is worked out
- The greatest common factor of 18 and 24 is 6.
- Divide the top and the bottom by it: 18 ÷ 6 = 3 and 24 ÷ 6 = 4.
| Inputs | Answer |
|---|---|
| Numerator: 18; Denominator: 24 | 18/24 simplified is 3/4. |
| Numerator: 45; Denominator: 60 | 45/60 simplified is 3/4. |
| Numerator: 7; Denominator: 12 | 7/12 simplified is 7/12. |
| Numerator: 100; Denominator: 250 | 100/250 simplified is 2/5. |
How to use it
To simplify a fraction, divide the numerator and the denominator by their greatest common factor (GCF). 18/24 has a GCF of 6, so it simplifies to 3/4. A fraction whose GCF is 1 is already in lowest terms.
The calculator also gives the mixed-number and decimal forms. Use the GCF calculator if you want the full working for finding the common factor.
Frequently asked questions
How do I simplify 18/24?
The GCF of 18 and 24 is 6. 18 ÷ 6 = 3 and 24 ÷ 6 = 4, so 18/24 = 3/4.
Can every fraction be simplified?
No. If the top and bottom share no factor except 1, such as 7/12, it is already in lowest terms.
Does simplifying change the value?
No. 3/4 and 18/24 are equal; only the form changes.
Method: standard arithmetic shown step by step; no outside data is used. Checked 2026-11-12.
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General information only. Results are plain arithmetic on the numbers you enter; check anything important (money, health, school work) against your own records or the official source.