$$4\frac{1}{4}+18\frac{1}{8}+4\frac{3}{8}-(\frac{1}{2}\div\frac{7}{12}\times2\frac{1}{3})$$
$\frac{99}{4}=24.75$
$$\frac{16+1}{4}+\frac{18\times 8+1}{8}+\frac{4\times 8+3}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{17}{4}+\frac{18\times 8+1}{8}+\frac{4\times 8+3}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{17}{4}+\frac{144+1}{8}+\frac{4\times 8+3}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{17}{4}+\frac{145}{8}+\frac{4\times 8+3}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{34}{8}+\frac{145}{8}+\frac{4\times 8+3}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{34+145}{8}+\frac{4\times 8+3}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{179}{8}+\frac{4\times 8+3}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{179}{8}+\frac{32+3}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{179}{8}+\frac{35}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{179+35}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{214}{8}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{107}{4}-\frac{\frac{1}{2}}{\frac{7}{12}}\times \frac{2\times 3+1}{3}$$
$$\frac{107}{4}-\frac{1}{2}\times \frac{12}{7}\times \frac{2\times 3+1}{3}$$
$$\frac{107}{4}-\frac{1\times 12}{2\times 7}\times \frac{2\times 3+1}{3}$$
$$\frac{107}{4}-\frac{12}{14}\times \frac{2\times 3+1}{3}$$
$$\frac{107}{4}-\frac{6}{7}\times \frac{2\times 3+1}{3}$$
$$\frac{107}{4}-\frac{6}{7}\times \frac{6+1}{3}$$
$$\frac{107}{4}-\frac{6}{7}\times \frac{7}{3}$$
$$\frac{107}{4}-\frac{6\times 7}{7\times 3}$$
$$\frac{107}{4}-\frac{6}{3}$$
$$\frac{107}{4}-2$$
$$\frac{107}{4}-\frac{8}{4}$$
$$\frac{107-8}{4}$$
$$\frac{99}{4}$$
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$\frac{3 ^ {2} \cdot 11}{2 ^ {2}} = 24\frac{3}{4} = 24.75$
