5 3/20 - 4 7/10 = ?

5 \(\frac{3}{20}\) - 4 \(\frac{7}{10}\) = 5 \(\frac{3}{20}\) - 4 \(\frac{14}{20}\) = 1 \(\frac{3}{20}\) - \(\frac{14}{20}\) = \(\frac{23}{20}\) - \(\frac{14}{20}\) = \(\frac{9}{20}\)