Question

Algebra one help, please.

Answer 1

\[\sqrt{75}=\sqrt{25\times 3}=5\sqrt{3}\]
\[\frac{\sqrt{75}}{\sqrt{21}}=\frac{5\sqrt{3}}{\sqrt{21}}=\frac{5}{\sqrt{7}}\] rationalize the denominator and get
\[\frac{5\sqrt{7}}{7}\]

Answer 2

\[5\sqrt{7}/7\]

Answer 3

Thanks you guys!