$\frac{779a^3{b}^9}{703a^4{b}^4{d}^4}\backslash frac\{779a^3b^9\}\{703a^4b^4d^4\}$

$\frac{153{(a+b)}^2\mathrm{a}\mathrm{b}\mathrm{c}\mathrm{d}}{255a^2{b}^2{c}^2{d}^2}\backslash frac\{153\backslash left(a+b\backslash right)^2\backslash mathrm\{abcd\}\}\{255a^2b^2c^2d^2\}$