Which of the following ratios is the greatest?

Explanation

1. 01

   Write each ratio as a decimal: $\frac{3}{5} = 0.6$, $\frac{4}{7} \approx 0.571$, $\frac{5}{8} = 0.625$, $\frac{7}{11} \approx 0.636$.

2. 02

   The largest value is 0.636, so $7 : 11$ is the greatest.