231
33
99
33 and 30 have only two common factors. Their greatest common factor is 3 . Their least common factor is 1 .
LCD(33, 40) = 1320LCD(33, 40) = 1320LCD(33, 40) = 1320LCD(33, 40) = 1320
LCD(22, 33) = 66.
LCD(6, 14) = 42
21
3 x 11 x 20 = 660
Assume we have two fractions: 2/3 and 7/11. Determine the LCD of these fractions by finding the LCM of 3 and 11. It's 33 since you take the product of 3 and 11, which are relatively prime numbers. Then, the fractions with the same denominators, by multiplication, turns out to be: 2/3 * 11/11 = 22/33 7/11 * 3/3 = 21/33 Comparing these fractions, 2/3 > 7/11. In other words, 2/3 is greater than 7/11.
168
84
It is: 42