8
8.
28
28.
20
24
28 is the LCD
LCD(7, 9, 2) = 126.
1 All of these numbers are primes. * * * * * That is the HCF or GCF. The LCD is 42
24
72
7 over 2------------------------------------------ 350% 1 over 2------------------------------------------ 50% 7 and 1/2 = 750%
You need at least two fractions to find an LCD. If that's 5/7 and 1/2, the LCD is 14.