255
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Rewriting input as fractions if necessary: 8/17, 15/19, 3/5The least common denominator (LCD) is: 1615.Rewriting as equivalent fractions with the LCD: 760/1615, 1275/1615, 969/1615Ordering these fractions by the numerator: 760/1615
the LCD is the LCM (least common multiple) of the two number which is 105 in this case
255
Note that 17 is a prime number so its only factors are itself and 1.This tells us that the LCD, which is the least common multiple of the denominators is12x17 which is 204.
The LCD is 1. The GCD is 17.