2/3 min 3 × 9/5 min0

[tex] \frac{2}{3} -3 \times \frac{9}{5} -0 \\ = \frac{2}{3} - \frac{27}{5} \\ = \frac{10-81}{15} \\ = - \frac{71}{15} \\ = -4\frac{11}{15}[/tex]