what is answer??

 Hi Mat,

$$\\x\div\frac{16}{17}-\frac{33}{340}=x\times\frac{16}{17}\\\\ x\times\frac{17}{16}-\frac{33}{340}=\frac{16x}{17}\\\\ \frac{17x}{16}-\frac{16x}{17}=\frac{33}{340}\\\\ \frac{17^2x}{16*17}-\frac{16^2x}{17*16}=\frac{33}{340}\\\\ \frac{17^2x-16^2x}{4*4*17}=\frac{33}{17*4*5}\\\\ \frac{289x-256x}{4}=\frac{33}{5}\\\\ \frac{33x}{4}=\frac{33}{5}\\\\ \frac{x}{4}=\frac{1}{5}\\\\ x=\frac{4}{5}\\\\$$

This answer needs to be checked.