Question

calcule o valor da expressão : raiz quadrada de 3/10 : 8/15

Answer 1

$\sqrt{ \frac{3}{10}:\frac{8}{15} } = \sqrt{ \frac{3}{10}\cdot\frac{15}{8} } =\sqrt{ \frac{45^{:5}}{80_{:5}}} =\sqrt{ \frac{9}{16}} = \frac{ \sqrt{9} }{ \sqrt{16} }= \frac{3}{4}$