Ответ:

Используем равенство \(\frac{\sqrt a}{\sqrt b}=\sqrt{\frac{a}{b}}\).

  1. а) \(\frac{\sqrt3}{\sqrt{48}}=\sqrt{\frac{3}{48}}=\sqrt{\frac{1}{16}}=\frac14\); б) \(\frac{\sqrt{52}}{\sqrt{13}}=\sqrt4=2\); в) \(\frac{\sqrt{12}}{\sqrt{27}}=\sqrt{\frac49}=\frac23\); г) \(\frac{\sqrt{4500}}{\sqrt{500}}=\sqrt9=3\).
  2. а) \(\frac{\sqrt{7{,}2}}{\sqrt{0{,}2}}=\sqrt{36}=6\); б) \(\frac{\sqrt{98}}{\sqrt{12{,}5}}=\sqrt{7{,}84}=2{,}8\); в) \(\frac{\sqrt{2{,}5}}{\sqrt{40}}=\sqrt{0{,}0625}=0{,}25\); г) \(\frac{\sqrt{1{,}8}}{\sqrt{12{,}8}}=\sqrt{\frac{9}{64}}=\frac38=0{,}375\).