Datrys sqrt{21/12}=

$$\sqrt { 2 \frac { 1 } { 12 } } =$$

Enrhifo

$$\frac{5\sqrt{3}}{6}\approx 1.443375673$$

Camau Ateb

Lluosi 2 a 12 i gael 24.

$$\sqrt{\frac{24+1}{12}}$$

Adio 24 a 1 i gael 25.

$$\sqrt{\frac{25}{12}}$$

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{25}{12}} fel rhaniad ail israddau \frac{\sqrt{25}}{\sqrt{12}}.

$$\frac{\sqrt{25}}{\sqrt{12}}$$

Cyfrifo ail isradd 25 a chael 5.

$$\frac{5}{\sqrt{12}}$$

Ffactora 12=2^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 3} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{3}. Cymryd isradd 2^{2}.

$$\frac{5}{2\sqrt{3}}$$

Mae'n rhesymoli enwadur \frac{5}{2\sqrt{3}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{3}.

$$\frac{5\sqrt{3}}{2\left(\sqrt{3}\right)^{2}}$$

Sgwâr \sqrt{3} yw 3.

$$\frac{5\sqrt{3}}{2\times 3}$$

Lluosi 2 a 3 i gael 6.

$$\frac{5\sqrt{3}}{6}$$