5.9 Proficiency exam

( [link] ) $\frac{3}{\text{16}}+\frac{1}{8}$

( [link] ) $2\frac{2}{3}+5\frac{1}{6}$

( [link] ) $\frac{7}{\text{15}}\cdot \frac{\text{20}}{\text{21}}+\frac{5}{9}$

( [link] ) $\frac{3}{\text{11}}+\frac{5}{\text{11}}$

( [link] ) $6\frac{2}{9}\cdot 1\frac{\text{17}}{\text{28}}-\left(3\frac{4}{\text{17}}-\frac{\text{21}}{\text{17}}\right)$

( [link] ) $5\frac{1}{8}-2\frac{4}{5}$

( [link] ) $\frac{\frac{7}{\text{12}}}{\frac{8}{\text{21}}}$

( [link] ) $\frac{\frac{1}{8}+\frac{3}{4}}{1\frac{7}{8}}$

( [link] ) $4\frac{5}{\text{16}}+1\frac{1}{3}-2\frac{5}{\text{24}}$

( [link] ) $\frac{5}{\text{18}}\cdot \left(\frac{\text{15}}{\text{16}}-\frac{3}{8}\right)$

( [link] ) $4+2\frac{1}{3}$

( [link] ) $8\frac{3}{7}-5$

( [link] ) $\frac{4}{5}$ , $\frac{\text{12}}{\text{15}}$

( [link] ) $\frac{5}{8}$ , $\frac{\text{24}}{\text{40}}$

( [link] ) $\frac{5}{\text{12}}$ , $\frac{\text{80}}{\text{192}}$

( [link] ) $\frac{8}{9}$ , $\frac{6}{7}$

( [link] ) $\frac{5}{8}$ , $\frac{7}{9}$

( [link] ) $\text{11}\frac{5}{\text{16}}$ , $\text{11}\frac{5}{\text{12}}$

( [link] ) $\frac{2}{\text{15}}$ , $\frac{3}{\text{10}}$ , $\frac{1}{6}$

( [link] ) $\frac{\text{19}}{\text{32}}$ , $\frac{9}{\text{16}}$ , $\frac{5}{8}$