$$B.5\frac{4}{9}\times2\frac{3}{4}\div2\frac{4}{3}+1\frac{1}{2}\times5$$
$\frac{187B}{240}+7.5$
$$\frac{B\times \frac{4.5+4}{9}\times \frac{2\times 4+3}{4}}{\frac{2\times 3+4}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{8.5}{9}\times \frac{2\times 4+3}{4}}{\frac{2\times 3+4}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{85}{90}\times \frac{2\times 4+3}{4}}{\frac{2\times 3+4}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{17}{18}\times \frac{2\times 4+3}{4}}{\frac{2\times 3+4}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{17}{18}\times \frac{8+3}{4}}{\frac{2\times 3+4}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{17}{18}\times \frac{11}{4}}{\frac{2\times 3+4}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{17\times 11}{18\times 4}}{\frac{2\times 3+4}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{187}{72}}{\frac{2\times 3+4}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{187}{72}}{\frac{6+4}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{187}{72}}{\frac{10}{3}}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{187}{72}\times 3}{10}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{187\times 3}{72}}{10}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{561}{72}}{10}+\frac{1\times 2+1}{2}\times 5$$
$$\frac{B\times \frac{187}{24}}{10}+\frac{1\times 2+1}{2}\times 5$$
$$B\times \frac{187}{240}+\frac{1\times 2+1}{2}\times 5$$
$$B\times \frac{187}{240}+\frac{2+1}{2}\times 5$$
$$B\times \frac{187}{240}+\frac{3}{2}\times 5$$
$$B\times \frac{187}{240}+\frac{3\times 5}{2}$$
$$B\times \frac{187}{240}+\frac{15}{2}$$
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