Which of these fractions is the greatest?

Explanation

1. 01

   Compare how far each is from 1: $\frac{2}{9}$, $\frac{1}{4}$, $\frac{2}{7}$ and $\frac{1}{3}$.

2. 02

   $\frac{2}{9} \approx 0.22$ is the smallest gap, so $\frac{7}{9}$ is the greatest.