# Mixed Number to Improper Fraction Calculator

URL: https://speedycalculator.com/calculators/math/mixed-number/
Last updated: 2026-10-25

> This calculator converts a mixed number such as 3 2/5 into an improper fraction, and gives the decimal value. It is a common step before multiplying or dividing fractions.

## Inputs

- Whole number
- Numerator
- Denominator

## Results

- Improper numerator
- Denominator
- Decimal value

## Formula

```
Improper numerator = whole × denominator + numerator
```

## Explanation

Mixed numbers are easy to read, but improper fractions are easier to calculate with.

### How to use the Mixed Number to Improper Fraction Calculator

- **Whole number**
- **Numerator**
- **Denominator**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Multiply the whole number by the denominator, add the numerator, and keep the same denominator.

### Inputs explained

FieldWhat to enterWhole numberA numberNumeratorA numberDenominatorA number

## Worked example

Inputs — Whole number: 3; Numerator: 2; Denominator: 5.

Results — **Improper numerator = 17**; Denominator = 5; Decimal value = 3.4.

## FAQ

**How do I go back to a mixed number?**
Divide numerator by denominator: the quotient is the whole part and the remainder the new numerator.

**Is 17/5 simplified?**
Yes, 17 and 5 share no common factor.

**What formula does the Mixed Number to Improper Fraction Calculator use?**
Improper numerator = whole × denominator + numerator.