40%+1/9-0,3x1 1/2= caranya?

[tex]40persen + \frac{1}{9} -0,3 \times 1 \frac{1}{2} \\ = \frac{40}{100} +\frac{1}{9} -\frac{3}{10} \times \frac{3}{2} \\ = \frac{2}{5} +\frac{1}{9} - (\frac{3}{10} \times \frac{3}{2} ) \\ = \frac{2}{5} +\frac{1}{9} - \frac{9}{20} = \\ = \frac{72}{180} +\frac{20}{180} - \frac{81}{180} = \\ = \frac{72+20-81}{180}\\ = \frac{11}{180} [/tex]