Solve frac{sqrt{3}}{sqrt{3}+sqrt{2}}

$$\frac { \sqrt { 3 } } { \sqrt { 3 } + \sqrt { 2 } }$$

Evaluate

$$3-\sqrt{6}\approx 0.550510257$$

Solution Steps

Rationalize the denominator of \frac{\sqrt{3}}{\sqrt{3}+\sqrt{2}} by multiplying numerator and denominator by \sqrt{3}-\sqrt{2}.

$$\frac{\sqrt{3}\left(\sqrt{3}-\sqrt{2}\right)}{\left(\sqrt{3}+\sqrt{2}\right)\left(\sqrt{3}-\sqrt{2}\right)}$$

Consider \left(\sqrt{3}+\sqrt{2}\right)\left(\sqrt{3}-\sqrt{2}\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.

$$\frac{\sqrt{3}\left(\sqrt{3}-\sqrt{2}\right)}{\left(\sqrt{3}\right)^{2}-\left(\sqrt{2}\right)^{2}}$$

Square \sqrt{3}. Square \sqrt{2}.

$$\frac{\sqrt{3}\left(\sqrt{3}-\sqrt{2}\right)}{3-2}$$

Subtract 2 from 3 to get 1.

$$\frac{\sqrt{3}\left(\sqrt{3}-\sqrt{2}\right)}{1}$$

Anything divided by one gives itself.

$$\sqrt{3}\left(\sqrt{3}-\sqrt{2}\right)$$

Use the distributive property to multiply \sqrt{3} by \sqrt{3}-\sqrt{2}.

$$\left(\sqrt{3}\right)^{2}-\sqrt{3}\sqrt{2}$$

The square of \sqrt{3} is 3.

$$3-\sqrt{3}\sqrt{2}$$

To multiply \sqrt{3} and \sqrt{2}, multiply the numbers under the square root.

$$3-\sqrt{6}$$