Помогите мне! очень нужно

Решите задачу:

$\frac{\left(0,54:1,35+\frac35:2\frac14+\left(-\frac16\right)\right)\cdot4}{\left(1,75+\frac15\right):\left(-2\frac35\right)}\\\left(0,54:1,35+\frac35:2\frac14+\left(-\frac16\right)\right)\cdot4=\left(\frac{54}{100}:\frac{135}{100}+\frac35:\frac94-\frac16\right)\cdot4=\\=\left(\frac{54}{100}\cdot\frac{100}{135}+\frac35\cdot\frac49-\frac16\right)\cdot4=\left(\frac25+\frac4{15}-\frac16\right)\cdot4=\frac{12+8-5}{30}\cdot4=\frac{15}{30}\cdot4=2\\$
$\left(1,75+\frac15\right):\left(-2\frac35\right)=-\left(1\frac34+\frac15\right):2\frac35=-\left(\frac74+\frac15\right):\frac{13}5=\\=-\frac{35+4}{20}\cdot\frac5{13}=-\frac{39}{20}\cdot\frac5{13}=-\frac34\\\frac{\left(0,54:1,35+\frac35:2\frac14+\left(-\frac16\right)\right)\cdot4}{\left(1,75+\frac15\right):\left(-2\frac35\right)}=2:\left(-\frac34\right)=-2:\frac34=-2\cdot\frac43=-\frac83=-2\frac23$