5148
121
LCM(11, 13, 15) = 2145
Convert the fractions to a common denominator to compare them. Or divide 11 / 12, and 12 / 13, in a calculator, and compare the decimal equivalents.
143
The common denominator of 9 and 13 is 1
121
LCM(11, 13, 15) = 2145
Convert the fractions to a common denominator to compare them. Or divide 11 / 12, and 12 / 13, in a calculator, and compare the decimal equivalents.
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
143
The common denominator of 9 and 13 is 1
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
Well, let's take a moment to appreciate the beauty of these fractions. To subtract them, we need a common denominator. In this case, it's 24. So, 11/12 becomes 22/24, and 3/8 becomes 9/24. Subtracted, they give us 13/24, a lovely little fraction full of possibilities.
1 is a common factor of 11, 12, 13, 14 and 15.
First, you have to have a lowest common denominator. Eg: 1/2 - 6/13 The lowest common denominator is 26, because 13 * 2 is 26. You multiply 1/2 by 13, to make the denominator 26, which equals 13/26, then multiply 6/13 by 2 to get 12/26. So the equation with the lowest common denominators now plugged in is: 13/26 - 12/26 Subtract the numerators (13 and 12), so the answer is 1/26.
The least common denominator of 3 and 13 is 39.
The least common denominator of 13 and 52 is52