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What is a common denominator?
Sometimes fractions have different denominators. These are called unlike fractions. When adding or subtracting fractions with unlike denominators, it is necessary to find a common denominator to get the correct answer. This is the same process as finding the least common multiple. Example 1/30 + 1/42 Factor them. 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Combine the factors, eliminating duplicates. 2 x 3 x 5 x 7 = 210, the lowest common denominator.
What is the least common denominator of 6 and 8?
24 is the least common denominator.6 = 2 x 38 = 2 x 2 x 2 ]Common factors = 2, uncommon factors = 3 x 2 x 2 (12) and the LCD is 2 x 12 =24By the exponential method6 = 21 x 318 = 23and 23 x 31 = 8 x 3 = 24There is none because the Least Common Denominator (or LCD) refers to the Least Common Multiple (LCM) of the denominators of two or more fractions or mixed numbers. Even if you converted your whole numbers (x) to their fraction equivalents (x/1), the LCD would always be 1.
What is the least common denominator of 45 75 171?
There is none because the Least Common Denominator (or LCD) refers to the Least Common Multiple (LCM) of the denominators of two or more fractions or mixed numbers. Even if you converted your whole numbers (x) to their fraction equivalents (x/1), the LCD would always be 1.
What is the least common denominator for 7 8 and 1 4?
There is none because the Least Common Denominator (or LCD) refers to the Least Common Multiple (LCM) of the denominators of two or more fractions or mixed numbers. Even if you converted your whole numbers (x) to their fraction equivalents (x/1), the LCD would always be 1.
How do I find the greatest common factor of of the numerator and the denominator?
The same way you would any pair of numbers. Example 30/42 Factor them. 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Select the common factors. 2 x 3 = 6, the GCF
