Datrys frac{7sqrt{2}}{2sqrt{8}}

$$\frac { 7 \sqrt { 2 } } { 2 \sqrt { 8 } }$$

Enrhifo

$$\frac{7}{4}=1.75$$

Camau Ateb

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}.

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

Lluosi 2 a 2 i gael 4.

$$\frac{7\sqrt{2}}{4\sqrt{2}}$$

Canslo \sqrt{2} yn y rhifiadur a'r enwadur.

$$\frac{7}{4}$$

Ffactor

$$\frac{7}{2 ^ {2}} = 1\frac{3}{4} = 1.75$$