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What else can I help you with?
What is the LCD of 9 and 21?
LCD(9, 21) = 63
What is the LCD of 18 and 21?
LCD(18, 21) = 126
How do you know that the fraction 21 over 30 is larger than 2 over 3?
You can't accurately compare fractions if they don't have a common denominator. In other words, the bottom numbers of both fractions have to be the same. To change that, you have to find the LCD, or least common denominator (the smallest number both bottom numbers multiply evenly into.) In this case, the LCD is 30, since 3 is a factor of 30. Since 10 x 3 =30, we have to multiply the top number (or numerator) by 10 also. Here's what the process looks like: 21/30 > 2/3 (original problem) 21/30 > ?/30 (find the LCD) 21/30 > 20/30 (multiply the numerator by the same number as the denominator) 21/30 > 20/30 (final answer) So there you have it. 21 is larger than 20, therefore 21/30 is larger than 2/3.
What is the lcd of 21 13 and 14 15?
LCD(21, 13, 14, 15) = 2730
What is the LCD 3 30?
30
What is the LCD of3and7?
21
What is LCD of 5 and 3?
LCD(49, 21) = 147
What is the LCD of 10 and 6?
It is 30
What is the LCD of 3 and 7?
21
What is the LCD of 7 and3?
21.
Is 210 the lcd for 12 and 21?
No.
What is the LCD for 15 and 21?
It is: 105
