There is none because the Least Common Denominator (or LCD) refers to the Least Common Multiple (LCM) of the denominators of two or more fractions or mixed numbers. Even if you converted your whole numbers (x) to their fraction equivalents (x/1), the LCD would always be 1.
17 * 5 is 255
You need at least two fractions to determine a least common denominator.
34
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of two or more fractions.
The LCD for 17 and 12 is 204
204
765
A common denominator, though not the least, is 1700.
You need at least two fractions to determine a least common denominator.
68
It is 85
119
Their product.
136
34
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of two or more fractions.
The LCD for 17 and 12 is 204
204