Datrys =frac{sqrt{45}*sqrt{32}}{sqrt{360}}

$$= \frac { \sqrt { 45 } \times \sqrt { 32 } } { \sqrt { 360 } }$$

Enrhifo

$$2$$

Camau Ateb

Ffactora 45=3^{2}\times 5. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 5} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{5}. Cymryd isradd 3^{2}.

$$\frac{3\sqrt{5}\sqrt{32}}{\sqrt{360}}$$

Ffactora 32=4^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{4^{2}\times 2} fel lluoswm ail israddau \sqrt{4^{2}}\sqrt{2}. Cymryd isradd 4^{2}.

$$\frac{3\sqrt{5}\times 4\sqrt{2}}{\sqrt{360}}$$

Lluosi 3 a 4 i gael 12.

$$\frac{12\sqrt{5}\sqrt{2}}{\sqrt{360}}$$

I luosi \sqrt{5} a \sqrt{2}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{12\sqrt{10}}{\sqrt{360}}$$

Ffactora 360=6^{2}\times 10. Ailysgrifennu ail isradd y lluoswm \sqrt{6^{2}\times 10} fel lluoswm ail israddau \sqrt{6^{2}}\sqrt{10}. Cymryd isradd 6^{2}.

$$\frac{12\sqrt{10}}{6\sqrt{10}}$$

Canslo 6\sqrt{10} yn y rhifiadur a'r enwadur.

$$2$$

Ffactor

$$2$$