Question

A)
$\sqrt{ \frac{36}{49} } \times \sqrt{ \frac{25}{4} }$
B)
$\sqrt{ \frac{121}{100} } \div \sqrt{ \frac{4}{25} }$
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Answer 1

Explicação passo-a-passo:

$a) \frac{ \sqrt{36} }{ \sqrt{49} }. \frac{ \sqrt{25} }{ \sqrt{4} } = \frac{6}{7} . \frac{5}{2} = \frac{6.5}{7.2} = \frac{3.5}{7.1} = \boxed{\frac{15}{7}}$

$b) \frac{ \sqrt{121} }{ \sqrt{100} } \div \frac{ \sqrt{4} }{ \sqrt{25} } = \frac{11}{10} \div \frac{2}{5} = \frac{11}{10}. \frac{5}{2} = \frac{11}{2.2} = \boxed{ \frac{11}{4} }$