Explicație pas cu pas:
[tex] \frac{4}{7} \times \frac{5}{2} = \frac{2 \times \not 2}{7} \times \frac{5}{\not 2} = \frac{2 \times 5}{7} = \frac{10}{7} \\ [/tex]
[tex]\left( - \frac{15}{32}\right) \times \left( - \frac{4}{3}\right) = \frac{\not 3 \times 5}{\not 4 \times 8} \times \frac{\not 4}{\not 3} = \frac{5}{8} \\ [/tex]
