Помогите с 27 заданием

А) $\frac{1}{5}$ < <img src="https://tex.z-dn.net/?f=+%5Cfrac%7Bx%7D%7B40%7D+" id="TexFormula2" title=" \frac{x}{40} " alt=" \frac{x}{40} " align="absmiddle" class="latex-formula"> < <img src="https://tex.z-dn.net/?f=+%5Cfrac%7B1%7D%7B4%7D+" id="TexFormula3" title=" \frac{1}{4} " alt=" \frac{1}{4} " align="absmiddle" class="latex-formula">
$\frac{8}{40}$ < <img src="https://tex.z-dn.net/?f=+%5Cfrac%7Bx%7D%7B40%7D+" id="TexFormula5" title=" \frac{x}{40} " alt=" \frac{x}{40} " align="absmiddle" class="latex-formula"> < <img src="https://tex.z-dn.net/?f=+%5Cfrac%7B10%7D%7B40%7D+" id="TexFormula6" title=" \frac{10}{40} " alt=" \frac{10}{40} " align="absmiddle" class="latex-formula">
х = 9
б) $\frac{1}{3}$ > $\frac{x}{24}$ > $\frac{1}{4}$
$\frac{8}{24}$ > $\frac{x}{24}$ > $\frac{6}{24}$
x = 7
в) $\frac{1}{3}$ < <img src="https://tex.z-dn.net/?f=+%5Cfrac%7Bx%7D%7B12%7D+" id="TexFormula14" title=" \frac{x}{12} " alt=" \frac{x}{12} " align="absmiddle" class="latex-formula"> < <img src="https://tex.z-dn.net/?f=+%5Cfrac%7B1%7D%7B2%7D+" id="TexFormula15" title=" \frac{1}{2} " alt=" \frac{1}{2} " align="absmiddle" class="latex-formula">
$\frac{4}{12}$ < <img src="https://tex.z-dn.net/?f=+%5Cfrac%7Bx%7D%7B12%7D+" id="TexFormula17" title=" \frac{x}{12} " alt=" \frac{x}{12} " align="absmiddle" class="latex-formula"> < <img src="https://tex.z-dn.net/?f=+%5Cfrac%7B6%7D%7B12%7D+" id="TexFormula18" title=" \frac{6}{12} " alt=" \frac{6}{12} " align="absmiddle" class="latex-formula">
x = 5