51 5 1-: 93 31

\[1 \frac{51}{93} : 1 \frac{5}{31} = \frac{1 \cdot 93 + 51}{93} : \frac{1 \cdot 31 + 5}{31} = \frac{144}{93} : \frac{36}{31} = \frac{144}{93} \cdot \frac{31}{36} = \frac{4464}{3348} = \frac{124}{93} = 1 \frac{31}{93} = 1 \frac{1}{3}\]