Datrys sqrt{8/15}

$$\sqrt { \frac { 8 } { 15 } }$$

Enrhifo

$$\frac{2\sqrt{30}}{15}\approx 0.730296743$$

Camau Ateb

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{8}{15}} fel rhaniad ail israddau \frac{\sqrt{8}}{\sqrt{15}}.

$$\frac{\sqrt{8}}{\sqrt{15}}$$

Ffactora 8=2^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 2} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{2}. Cymryd isradd 2^{2}.

$$\frac{2\sqrt{2}}{\sqrt{15}}$$

Mae'n rhesymoli enwadur \frac{2\sqrt{2}}{\sqrt{15}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{15}.

$$\frac{2\sqrt{2}\sqrt{15}}{\left(\sqrt{15}\right)^{2}}$$

Sgwâr \sqrt{15} yw 15.

$$\frac{2\sqrt{2}\sqrt{15}}{15}$$

I luosi \sqrt{2} a \sqrt{15}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{2\sqrt{30}}{15}$$