\(=\)\(\frac{-3}{5}\)\(+\frac{28.43}{5.28.2}\)\(+\frac{4.7.5}{5.4.6}\)\(+\frac{28.21}{5.21.3}\)
\(=\)\(\frac{-3}{5}\)\(+\frac{43}{10}+\frac{7}{6}+\frac{28}{15}\)
\(=\)\(\frac{-48}{90}+\frac{387}{90}+\frac{85}{90}+\frac{168}{90}\)
\(=\)\(\frac{592}{90}\)
\(=\)\(\frac{296}{45}\)