Решение:
- а) $$|5,4|:|{-27}|=5,4:27=0,2$$
- б) $$|-1\frac{3}{8}|\cdot|-2\frac{2}{11}|=|-\frac{11}{8}|\cdot|-\frac{24}{11}|=\frac{11}{8}\cdot\frac{24}{11}=\frac{11\cdot24}{8\cdot11}=\frac{24}{8}=3$$
- в) $$|3,8|:|{-2\frac{1}{2}}|=3,8:2,5=\frac{38}{10}:\frac{5}{2}=\frac{38}{10}\cdot\frac{2}{5}=\frac{38\cdot2}{10\cdot5}=\frac{76}{50}=\frac{38}{25}=1\frac{13}{25}=1,52$$
Ответ: а) 0,2; б) 3; в) 1,52