80
80
the LCD of fractions is the least common multiple. So we are looking for the least common multiple of 16 and 20 which is 20. So the Least common denominator is 80
A common denominator of 20 and 30 is 600. This is NOT the least common denominator, though.
To compare the sizes of fractions, we need to find a common denominator. In this case, the least common multiple of 5 and 20 is 20. Converting four fifths to have a denominator of 20, we get 16/20. Comparing 16/20 to 17/20, we see that 17/20 is bigger than 16/20. Therefore, seventeen twentieths is bigger than four fifths.
The least common denominator for 12 and 16 is 48.
A common denominator, though not the least one, is 16*24 = 384.
The greatest common denominator is infinite.
The greatest common denominator is infinite.
A common denominator, though not the least one, is 12*20 = 240.
16 is.
16
A common denominator, though the least, is 260.