Subtracting Fractions by Boxed Rockets

\frac{2}{5} - \frac{1}{5}

\frac{1}{5}

\frac{3}{6} - \frac{2}{6}

\frac{1}{6}

\frac{2}{3} - \frac{1}{3}

\frac{1}{3}

\frac{2}{8} - \frac{1}{5}

\frac{2}{40} = \frac{1}{20}

\frac{5}{8} - \frac{4}{12}

\frac{7}{24}

\frac{3}{5} - \frac{3}{8}

\frac{9}{40}