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# Find the least common denominator for fractions with denominators 45 and 42?

Updated: 9/18/2023

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Q: Find the least common denominator for fractions with denominators 45 and 42?
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### What is the least common denominator of two fractions?

The least common denominator is the least common multiple of the denominators of the fractions.

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The least common denominator for fractions with those denominators (11, 8 and 6) is 264.

### What is the LCM of the denominators of two or more fractions?

The least common multiple of two or more denominators is known as the least common denominator, or LCD.

### What is the least common denominator of 21 and 7?

The Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions. I assume the 7 and 21 are the denominators of two fractions you need to add or subtract.LCD(7, 21) = 21.

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The least common denominator is 144.

### When adding fractions with unlike denominators it is most helpful if the fractions are renamed using the?

If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator.

42

### When you subtract fractions do you subtract the denominator?

No. If the denominators are the same, you subtract the numerators. If the denominators are different you have to find the least common denominator.

### What is the common denominator for 33 and 6?

If 33 and 6 are denominators of fractions then the least common denominator is 66

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There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.

### IS THE LEAST COMMON mULTIPLE OF THE DENOMINATORS OF TWO OR MORE FRACTIONS?

The least common denominator, or LCD