To find out how much grass John and Eugene cut together, we need to add the fractions of the yard they each cut.
John cut \( \frac{1}{6} \) of the grass, and Eugene cut \( \frac{1}{3} \) of the grass.
First, we need to convert \( \frac{1}{3} \) to a fraction with a denominator of 6 so we can easily add the fractions:
\[ \frac{1}{3} = \frac{2}{6} \]
Now we can add the two fractions:
\[ \frac{1}{6} + \frac{2}{6} = \frac{3}{6} \]
We can simplify \( \frac{3}{6} \) to \( \frac{1}{2} \).
So, the boys cut exactly \( \frac{1}{2} \) of the yard.
The true statement is:
The boys cut exactly 1/2 of the yard.