There are three bags of marbles. Bag two has twice as many marbles as bag one. Bag three has three times as many marbles as bag one. Half the marbles in bag one, one third the marbles in bag two, and one fourth the marbles in bag three are green. If all three bags of marbles are dumped into a single pile, $\frac{m}{n}$ of the marbles in the pile would be green where $m$ and $n$ are relatively prime positive integers.
Find $m + n.$
1. Let Bag 1 have \( x \) marbles. Then Bag 2 has \( 2x \) marbles and Bag 3 has \( 3x \) marbles.
2. Calculate the number of green marbles in each bag:
   - Bag 1: \(\frac{1}{2}x\) green marbles.
   - Bag 2: \(\frac{1}{3}(2x) = \frac{2x}{3}\) green marbles.
   - Bag 3: \(\frac{1}{4}(3x) = \frac{3x}{4}\) green marbles.
3. Sum the number of green marbles from all three bags:
   \[
   \frac{x}{2} + \frac{2x}{3} + \frac{3x}{4}
   \]
4. To add these fractions, find a common denominator. The least common multiple of 2, 3, and 4 is 12. Convert each fraction:
   \[
   \frac{x}{2} = \frac{6x}{12}, \quad \frac{2x}{3} = \frac{8x}{12}, \quad \frac{3x}{4} = \frac{9x}{12}
   \]
5. Add the fractions:
   \[
   \frac{6x}{12} + \frac{8x}{12} + \frac{9x}{12} = \frac{23x}{12}
   \]
6. Calculate the total number of marbles in all three bags:
   \[
   x + 2x + 3x = 6x
   \]
7. Determine the ratio of green marbles to the total number of marbles:
   \[
   \frac{\frac{23x}{12}}{6x} = \frac{23x}{12} \cdot \frac{1}{6x} = \frac{23}{72}
   \]
8. The fraction \(\frac{23}{72}\) is already in simplest form, so \( m = 23 \) and \( n = 72 \).
9. Calculate \( m + n \):
   \[
   m + n = 23 + 72 = 95
   \]

The final answer is \(\boxed{95}\).