1. There are many motorbikes in the town .
2. He hasn't ever gone abroad before
3. This is my sister's pencil

\(=\frac{5}{4}.\left(-\frac{1}{3}+-\frac{1}{3}+\frac{3}{7}+\frac{4}{7}\right)=\frac{5}{4}.0=0\)

\(=\frac{9}{5}\left(-\frac{3}{22}+-\frac{3}{5}\right)=-\frac{729}{550}\)