Question

rationalise the denominator 5 ÷3√5​

Answer 1

$\frac{5}{3 \sqrt{5} } \times \frac{3 \sqrt{5} }{3 \sqrt{5} }$

$= \frac{15 \sqrt{5} }{9 \times 5} = \frac{15 \sqrt{5} }{45}$

$= \frac{ \sqrt{5} }{3}$

Answer 2

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