Least Common Denominator of 34, 72 and 78 (LCD of 34, 72 and 78)

Least Common Denominator (LCD) of 34, 72, and 78

The Least Common Denominator of 34, 72 and 78, also known as the Lowest Common Denominator of 34, 72 and 78, is useful if you need to add, subtract, or compare three fractions with the denominators of 34, 72 and 78.

The fractions with 34, 72 and 78 denominators will look like this:

		X
		34

		Y
		72

		Z
		78

The Least Common Denominator of 34, 72 and 78 is 15912.

You need to multiply 34 by 468, 72 by 221, and 78 by 204 to make them all 15912. 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 468
		34 x 468

		Y x 221
		72 x 221

		Z x 204
		78 x 204

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

		468X
		15912

		221Y
		15912

		204Z
		15912

You can substitute X, Y and Z with the numerators of your fractions with 34, 72 and 78 denominators. This way you can add, subtract and compare your fractions correctly.

Least Common Denominator Calculator
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Least Common Denominator (LCD) of 34, 72 and 79
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Notes

The Least Common Denominator of 34, 72 and 78 is the same as the Least Common Multiple of 34, 72 and 78.

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