б) 3 2/9 : 2 11/12

б) \(3 \frac{2}{9} : 2 \frac{11}{12} = \frac{29}{9} : \frac{35}{12} = \frac{29}{9} \cdot \frac{12}{35} = \frac{29 \cdot 12}{9 \cdot 35} = \frac{348}{315} = \frac{116}{105} = 1 \frac{11}{105}\)