Explicație pas cu pas:
b)
[tex]\frac{36}{49} : \frac{84}{41} = \frac{36}{49} \cdot \frac{41}{84} = \frac{ {2}^{2} \cdot {3}^{2} \cdot 41}{ {7}^{3} \cdot {2}^{2} \cdot 3 } = \frac{123}{343} \\ [/tex]
c)
[tex]\frac{630}{35} : \frac{81}{14} : \frac{35}{15} = \frac{630}{35} \cdot \frac{14}{81} \cdot \frac{15}{35} = \\ = \frac{ {2}^{2} \cdot {3}^{3} \cdot {5}^{2} \cdot {7}^{2} }{ {3}^{4} \cdot {5}^{2} \cdot {7}^{2} } = \bf \frac{4}{3} [/tex]
