Datrys frac{3sqrt{18}-sqrt{50}}{2sqrt{72}}

$$\frac { 3 \sqrt { 18 } - \sqrt { 50 } } { 2 \sqrt { 72 } }$$

Enrhifo

$$\frac{1}{3}\approx 0.333333333$$

Camau Ateb

Ffactora 18=3^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 2} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{2}. Cymryd isradd 3^{2}.

$$\frac{3\times 3\sqrt{2}-\sqrt{50}}{2\sqrt{72}}$$

Lluosi 3 a 3 i gael 9.

$$\frac{9\sqrt{2}-\sqrt{50}}{2\sqrt{72}}$$

Ffactora 50=5^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{5^{2}\times 2} fel lluoswm ail israddau \sqrt{5^{2}}\sqrt{2}. Cymryd isradd 5^{2}.

$$\frac{9\sqrt{2}-5\sqrt{2}}{2\sqrt{72}}$$

Cyfuno 9\sqrt{2} a -5\sqrt{2} i gael 4\sqrt{2}.

$$\frac{4\sqrt{2}}{2\sqrt{72}}$$

Ffactora 72=6^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{6^{2}\times 2} fel lluoswm ail israddau \sqrt{6^{2}}\sqrt{2}. Cymryd isradd 6^{2}.

$$\frac{4\sqrt{2}}{2\times 6\sqrt{2}}$$

Lluosi 2 a 6 i gael 12.

$$\frac{4\sqrt{2}}{12\sqrt{2}}$$

Canslo 4\sqrt{2} yn y rhifiadur a'r enwadur.

$$\frac{1}{3}$$

Ffactor

$$\frac{1}{3} = 0.3333333333333333$$