The common denominator of any two or more whole numbers, such as 6 9 15 and 18, will always be one (1) because 'common denominator' refers to the denominators of two or more fractions or mixed numbers, not whole numbers. So, a set of whole numbers (x,x) would have to be converted to their fraction equivalents, i.e., x/1, which will always yield a denominator of 1.
Wiki User
∙ 11y agoA common denominator of 6 and 15 is 90.
18 3*6 = 18 2*9 = 18
Answer: 30 If those numbers are denominators, the least common denominator is the least common multiple of the three. In this case, 30 is the LCM of 6, 10 and 15, so 30 is the least common denominator.
18
72
It is 3
A common denominator of 6 and 15 is 90.
18
The Greatest Common Denominator is 6
18 3*6 = 18 2*9 = 18
the least common multiple of 15,9,and 12 is 180.
Answer: 30 If those numbers are denominators, the least common denominator is the least common multiple of the three. In this case, 30 is the LCM of 6, 10 and 15, so 30 is the least common denominator.
You can find a common denominator of any set of denominators by multiplying them together. That result will not necessarily be the lowest common denominator. Example: 1/6 and 1/9 6 x 9 = 54 and 54 is a common denominator of 6 and 9, but the LCD is 18.
two thirds. Here's how:You need to have a common denominator to add or subtract fractions. Most people choose the Least Common Denominator (or Lowest Common Denominator), but any denominator which has all of the denominators as factors will get you the correct answer as an equivalent fraction. Now with this one, you could first simplify 3/18 to 1/6, then proceed, or you can just look at the denominators first.Looking at the denominators you can just multiply them all together to get a common denominator of 324, or try to find a lower common denominator: 6 is a factor of 18, and 3 is a factor of 18, so 18 is the Lowest Common Denominator.We need to convert the other fractions to equivalent fractions with 18 as the denominator. So for 1/3: 18 ÷ 3 = 6, so multiply the numerator and denominator by 6, to get 6/18; and for 1/6: 18 ÷ 6 = 3, so multiply numerator and denominator by 3, to get 3/18.Now we have 6/18 + 3/18 + 3/18. Add the numerators: 6 + 3 + 3 = 12, and put this over 18: 12/18. Now simplify if you want: 6 is common to both 12 & 18, so you can cancel: 12/18 = (6 × 2)/(6 × 3) = 2/3.
18
18
72