Answer:
Least Common Denominator = 28
Explanation:
To find the Least Common Denominator, we take the following steps.
First, we find the prime factorization of each integer.
[tex]\begin{gathered} 7=7^1 \\ 4=2^2 \end{gathered}[/tex]Next, we find the largest power that appears in the prime factorization.
The largest power of 2 is 2^2 and the largest power of 7 is 7^1; therefore, the least common denominator is
7 * 4 = 28
