Datrys sqrt{7/5}*sqrt{3/4}*sqrt{1/3}=

$$\sqrt{ \frac{ 7 }{ 5 } } \times \sqrt{ \frac{ 3 }{ 4 } } \times \sqrt{ \frac{ 1 }{ 3 } } =$$

Enrhifo

$$\frac{\sqrt{35}}{10}\approx 0.591607978$$

Camau Ateb

I luosi \sqrt{\frac{7}{5}} a \sqrt{\frac{3}{4}}, dylid lluosi'r rhifau dan yr ail isradd.

$$\sqrt{\frac{21}{20}}\sqrt{\frac{1}{3}}$$

I luosi \sqrt{\frac{21}{20}} a \sqrt{\frac{1}{3}}, dylid lluosi'r rhifau dan yr ail isradd.

$$\sqrt{\frac{7}{20}}$$

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{7}{20}} fel rhaniad ail israddau \frac{\sqrt{7}}{\sqrt{20}}.

$$\frac{\sqrt{7}}{\sqrt{20}}$$

Ffactora 20=2^{2}\times 5. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 5} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{5}. Cymryd isradd 2^{2}.

$$\frac{\sqrt{7}}{2\sqrt{5}}$$

Mae'n rhesymoli enwadur \frac{\sqrt{7}}{2\sqrt{5}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{5}.

$$\frac{\sqrt{7}\sqrt{5}}{2\left(\sqrt{5}\right)^{2}}$$

Sgwâr \sqrt{5} yw 5.

$$\frac{\sqrt{7}\sqrt{5}}{2\times 5}$$

I luosi \sqrt{7} a \sqrt{5}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{\sqrt{35}}{2\times 5}$$

Lluosi 2 a 5 i gael 10.

$$\frac{\sqrt{35}}{10}$$