Номер 378

Краткое условие: 1) \( 2 \frac{1}{4}: \frac{3}{8}: \frac{1}{2} \); 2) \( 2 \frac{1}{4}:\left(\frac{3}{8}: \frac{1}{2}\right) \); 3) \( 1 \frac{1}{2}: 1 \frac{1}{4}: 1 \frac{2}{3}: 1 \frac{1}{5} \); 4) \( 1 \frac{1}{2}:\left(1 \frac{1}{4}: 1 \frac{2}{3}\right): 1 \frac{1}{5} \); 5) \( \left(1 \frac{1}{2}\right)^{2}:\left(1 \frac{1}{4}\right)^{2}:\left(1 \frac{2}{3}\right)^{2}:\left(1 \frac{1}{5}\right)^{2} \); 6) \( 1 \frac{1}{2}:\left(1 \frac{1}{4}\right)^{2}: 1 \frac{2}{3}:\left(1 \frac{1}{5}\right)^{2} \).