# LCD Calculator for Fractions

This online calculator find the Least Common Denominator for several fractions

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The least common denominator (LCD) is a key concept in fractions. It is the smallest positive integer divisible by the denominators of several fractions, allowing them to be expressed with a common denominator. This is necessary for adding and subtracting fractions with different denominators.

The calculator below takes in the denominators of multiple fractions and calculates the least common denominator.

### The LCD calculation

If you prefer to find the LCD manually, there is a simple algorithm to do it:

- Find the maximum denominator.
- Check if you can perform integer division of this denominator by each other denominator.
- If you can, then you have found the answer - you've got your least common denominator.
- If you can't, multiply maximum denominator by 2.
- Check if you can perform integer division of this number by each other denominator.
- If you can, then you have found the answer - you've got your least common denominator.
- If you can't, multiply maximum denominator by 3.
- Check if you can perform integer division of this number by each other denominator.
- If you can, then you have found the answer - you've got your least common denominator.
- If you can't, multiply maximum denominator by 4, etc...

#### Similar calculators

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**PLANETCALC, LCD Calculator for Fractions

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