How do I convert a fraction to a decimal and percent?

Enter a fraction like 3/4 or 1 1/2 in the Fraction box. The tool automatically shows the decimal and percent.

How do I simplify a fraction?

Enter numerator and denominator (e.g., 8/12) and click Simplify. You will get simplest form, mixed number, decimal and percent.

Choose Percentage change mode, enter Start (A) and Final (B) and click Calculate. The tool shows increase or decrease percentage with steps.

Fraction Converter, Simplifier & Percentage Calculator – Online Maths Tools

Convert fractions, decimals & percentages, simplify fractions, and calculate percentage of / percentage change. Useful for GCSE, SAT, CBSE & ICSE.

Type in any one box and the other two update automatically.

Fraction 3/4 or 1 1/2

Use numerator/denominator or mixed number like 2 1/5.

Decimal 0.75

Good for science, money, calculators (0.25, 1.5).

Percent 75%

Useful for discounts, results, GST/VAT.

Tip: press Enter on Simplifier/Percentage to calculate quickly.

Get simplest form, mixed number, decimal, and percent.

Enter Fraction 8/12

You can also paste like 3/9 into Numerator and leave Denominator empty.

Results Live

Simplest—
Mixed—
Decimal—
Percent—
Type—

Denominator cannot be zero.

Select mode and enter A & B values. Live calculation supported.

Mode Choose

Example: 18% of 1000 → A=18, B=1000.

A Percent

B Number

Result Live

Main—
Extra—
Explain—

For percentage change, starting value (A) must not be zero.