1)\(\frac{4}{5}-\frac{1}{5}\)
\(\frac{3}{5}\)
2)\(\frac{6}{7}-\frac{4}{7}\)
\(\frac{2}{7}\)
3)\(\frac{5}{6}-\frac{1}{3}\)
\(\frac{3}{6}\)
4)\(\frac{1}{4}-\frac{3}{8}\)
\(-\frac{1}{8}\)
5)\(\frac{2}{3}-\frac{1}{9}\)
\(\frac{5}{9}\)
6)\(\frac{5}{6}-\frac{1}{2}-\frac{4}{6}\)
\(-\frac{2}{6}\)
7)\(\frac{1}{6}-\frac{1}{3}-\frac{1}{2}\)
\(-\frac{4}{6}\)
8)\(\frac{3}{7}-\frac{5}{28}- \frac{9}{14}\)
\(-\frac{11}{28}\)