Enrhifo
\frac{18\sqrt{3}+33}{13}\approx 4.936685734
Rhannu
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\frac{6+3\sqrt{3}}{4-\sqrt{3}}
Ffactora 27=3^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 3} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{3}. Cymryd isradd 3^{2}.
\frac{\left(6+3\sqrt{3}\right)\left(4+\sqrt{3}\right)}{\left(4-\sqrt{3}\right)\left(4+\sqrt{3}\right)}
Mae'n rhesymoli enwadur \frac{6+3\sqrt{3}}{4-\sqrt{3}} drwy luosi'r rhifiadur a'r enwadur â 4+\sqrt{3}.
\frac{\left(6+3\sqrt{3}\right)\left(4+\sqrt{3}\right)}{4^{2}-\left(\sqrt{3}\right)^{2}}
Ystyriwch \left(4-\sqrt{3}\right)\left(4+\sqrt{3}\right). Gellir trawsnewid lluosi yn wahaniaeth rhwng sgwariau drwy ddefnyddio’r rheol: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
\frac{\left(6+3\sqrt{3}\right)\left(4+\sqrt{3}\right)}{16-3}
Sgwâr 4. Sgwâr \sqrt{3}.
\frac{\left(6+3\sqrt{3}\right)\left(4+\sqrt{3}\right)}{13}
Tynnu 3 o 16 i gael 13.
\frac{24+6\sqrt{3}+12\sqrt{3}+3\left(\sqrt{3}\right)^{2}}{13}
Cyfrifwch y briodoledd ddosrannol drwy luosi pob 6+3\sqrt{3} gan bob 4+\sqrt{3}.
\frac{24+18\sqrt{3}+3\left(\sqrt{3}\right)^{2}}{13}
Cyfuno 6\sqrt{3} a 12\sqrt{3} i gael 18\sqrt{3}.
\frac{24+18\sqrt{3}+3\times 3}{13}
Sgwâr \sqrt{3} yw 3.
\frac{24+18\sqrt{3}+9}{13}
Lluosi 3 a 3 i gael 9.
\frac{33+18\sqrt{3}}{13}
Adio 24 a 9 i gael 33.
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