Question

Rationalise and simplify 4 )5 divided by )3 ... this ) is square root. How do you work it out?

Answer 1

\[\frac{ 4\sqrt{5} }{ \sqrt{3} }\]
to rationalise the denominator, it should not contain any square roots because square root of a number is not always rational.
so to rationalise the denominator multiply it by )3
\[\frac{ 4\sqrt{5} }{ \sqrt{3} }*\frac{ \sqrt{3} }{ \sqrt{3} }=\frac{ 4\sqrt{15} }{ 3 }\]

Answer 2

can you simplfy the 15 and the 3 so the equation ends up 4√5? @neer2890

Answer 3

how can you say that
\[\frac{ 4\sqrt{5} }{ \sqrt{3} }=4\sqrt{5}\]
keep in mind , rationalizing does not changes the actual values.

Answer 4

By the way, @Mmonika
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