Given
Product means multiplication
[tex]\frac{10}{21}\times\frac{14}{5}[/tex][tex]\begin{gathered} \frac{10}{21}\times\frac{14}{5}=\frac{140}{105} \\ \end{gathered}[/tex][tex]\begin{gathered} \frac{140\div5}{105\div5}=\frac{28}{21} \\ \\ \frac{28\div7}{21\div7}=\frac{4}{3} \\ \\ \frac{4}{3}=1\frac{1}{3} \end{gathered}[/tex]The final answer
[tex]\frac{10}{21}\times\frac{14}{5}=1\frac{1}{3}[/tex]