what is the least common denominator for 5 and 3?
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Least Common Multiple of 3 and 5. Least common multiple (LCM) of 3 and 5 is 15.
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Find the sum. The LCM of 5 and 3 is 15 . To add the fractions with unlike denominators, rename the fractions with a common denominator. Since the denominators are the same, add the numerators.
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For example, 10 is a multiple of 5 because 5 × 2 = 10, so 10 is divisible by 5 and 2. Because 10 is the smallest positive integer that is divisible by both 5 and 2, it is the least common multiple of 5 and 2. By the same principle, 10 is the least common multiple of −5 and −2 as well.
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The lowest common multiple ( LCM) of 6 & 7 is 42. Therefore, multiples of 42 are all common multiples of 6 & 7.
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Least Common Multiple of 3 and 13. Least common multiple (LCM) of 3 and 13 is 39.
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For example, LCM(2,3) = 6 and LCM(6,10) = 30. The LCM of two or more numbers is the smallest number that is evenly divisible by all numbers in the set.
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['Find the lowest common multiple of the denominators.', 'Express all fractions in terms of the lowest common denominator.', 'Simplify the numerators to obtain the numerator of the answer.']
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It is simply the smallest of the common multiples. In our previous example, the smallest of the common multiples is 20 ... ... so the Least Common Multiple of 4 and 5 is 20.
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What is the Least Common Denominator of 11 and 13? You need to know the least common denominator (LCD) of 11 and 13 if you want to add or subtract two fractions with 11 and 13 as denominators. The least common denominator, also called lowest common denominator (LCD), of 11 and 13 is 143.
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Method 1: To find the least common denominator, simply list the multiples of each denominator (multiply by 2, 3, 4, etc. out to about 6 or seven usually works) then look for the smallest number that appears in each list. Example: Suppose we wanted to add 1/5 + 1/6 + 1/15.
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Least Common Multiple of 5 and 9. Least common multiple (LCM) of 5 and 9 is 45.
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Least Common Multiple of 4 and 10. Least common multiple (LCM) of 4 and 10 is 20.
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Common multiples of 2 and 3 are 0, 6, 12, 18, ... The least common multiple (LCM) of two numbers is the smallest number (excluding zero) that is a multiple of both of the numbers. ... The greatest common factor (GCF) is the greatest factor that is common to two or more numbers (they share it).
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If a number is divisible by 3 and 5, it is divisible by 15. In the range 1 to 100, there are 6 such numbers. They are 15, 30, 45, 60, 75, 90.
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To do this, you need to find the least common multiple (LCM) of the two denominators. To subtract fractions with unlike denominators, rename the fractions with a common denominator. Then subtract and simplify. The LCM of 3 and 11 is 33 .
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5 less than 7 is the same as 7 minus 5. So, once again, the answer is 2.
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['Find the smallest multiple (LCM) of both numbers.', 'Rewrite the fractions as equivalent fractions with the LCM as the denominator.']