$\frac{1}{2}\left(b+5\right)$

$b+8>11$

$\cos^2\left(x\right)\csc\left(x\right)-\csc\left(x\right)$

$\frac{5}{2y}\cdot\frac{6y^2}{15}$

$\sqrt[2]{\frac{16}{9}}a^2-\sqrt[2]{\frac{3}{6}}b^2$

$5^2+3^2\cdot4$

$\frac{\frac{1}{8}b^{\frac{1}{2}}+\frac{6}{8}a^5+\frac{4}{7}}{\frac{5}{11}a^{\frac{1}{2}}b^{\frac{2}{4}}}$