Least Common Denominator of 2, 4 and 19 (LCD of 2, 4 and 19)

Least Common Denominator (LCD) of 2, 4, and 19

The Least Common Denominator of 2, 4 and 19, also known as the Lowest Common Denominator of 2, 4 and 19, is useful if you need to add, subtract, or compare three fractions with the denominators of 2, 4 and 19.

The fractions with 2, 4 and 19 denominators will look like this:

		X
		2

		Y
		4

		Z
		19

The Least Common Denominator of 2, 4 and 19 is 76.

You need to multiply 2 by 38, 4 by 19, and 19 by 4 to make them all 76. Furthermore, you need to multiply the numerators by the same amounts to keep the fraction values the same.

Therefore, you have to make the following calculations so the fractions keep the same value and get the same denominator:

		X x 38
		2 x 38

		Y x 19
		4 x 19

		Z x 4
		19 x 4

Which gives you the following three new fractions that you can add, subtract and compare:

		38X
		76

		19Y
		76

		4Z
		76

You can substitute X, Y and Z with the numerators of your fractions with 2, 4 and 19 denominators. This way you can add, subtract and compare your fractions correctly.

Least Common Denominator Calculator
Please enter another two or three denominators below so we can calculate the Least Common Denominator (LCD) for you:

Least Common Denominator (LCD) of 2, 4 and 20
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Notes

The Least Common Denominator of 2, 4 and 19 is the same as the Least Common Multiple of 2, 4 and 19.

To calculate what to multiply each denominator and corresponding numerator by, we divided the LCD by each of the denominators.