[tex] 3\frac{14}{25} \div a = \frac{89}{15} \\ \frac{89}{25} \div a = \frac{89}{15} \\ a = \frac{89}{25} \div \frac{89}{15} \\ a = \frac{89}{25} \times \frac{15}{89} \\ a = \frac{3}{5} \\ a = impartitorul[/tex]