Question 9
When finding the sum
$$
\dfrac12 + \dfrac13 + \dfrac14 + \dfrac15 + \dfrac16 + \dfrac17,
$$
what is the least common denominator used?
$$
\dfrac12 + \dfrac13 + \dfrac14 + \dfrac15 + \dfrac16 + \dfrac17,
$$
what is the least common denominator used?