What would be the ideal Common Denominator for 2 and 4?
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
To find the least common denominator, list the multiples of each denominator. The lowest one they have in common is the LCD.For example:2/3 and 3/4:The multiples of 3 are: 3, 6, 9, 12, 15, 18, 24...The multiples of 4 are: 4, 8, 12, 16, 20, 24...The common multiples are 12 and 24. Since 12 is the least, it is the LCM.
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The LCM of 3, 6, and 12 is 12.The least common denominator is the same as the least common multiple.The least common denominator is the smallest multiple divisible by 3, 6, and 12. Since 12 is divisible by 3, 6, and 12, and the smallest multiple of 12 is 12 x 1 = 12, that is the least common denominator or least common multiple.
12.
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12
84
What would be the ideal Common Denominator for 2 and 4?
There are infinitely many common denominators. The least of these is 12.
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5/12 + 9/6The least common multiple (LCM or common denominator) of 12 and 6 is 12 so bring both fractions to the same denominator: 5/12 + 18/12Add the numerators, the denominator is the LCM: 23/12Answer = 23/125/12 + 9/6The least common multiple (LCM or common denominator) of 12 and 6 is 12 so bring both fractions to the same denominator: 5/12 + 18/12Add the numerators, the denominator is the LCM: 23/12Answer = 23/125/12 + 9/6The least common multiple (LCM or common denominator) of 12 and 6 is 12 so bring both fractions to the same denominator: 5/12 + 18/12Add the numerators, the denominator is the LCM: 23/12Answer = 23/125/12 + 9/6The least common multiple (LCM or common denominator) of 12 and 6 is 12 so bring both fractions to the same denominator: 5/12 + 18/12Add the numerators, the denominator is the LCM: 23/12Answer = 23/12