Enrhifo
\frac{\sqrt{154}}{7}\approx 1.772810521
Rhannu
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\frac{\sqrt{22}}{\sqrt{7}}
Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{22}{7}} fel rhaniad ail israddau \frac{\sqrt{22}}{\sqrt{7}}.
\frac{\sqrt{22}\sqrt{7}}{\left(\sqrt{7}\right)^{2}}
Mae'n rhesymoli enwadur \frac{\sqrt{22}}{\sqrt{7}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{7}.
\frac{\sqrt{22}\sqrt{7}}{7}
Sgwâr \sqrt{7} yw 7.
\frac{\sqrt{154}}{7}
I luosi \sqrt{22} a \sqrt{7}, dylid lluosi'r rhifau dan yr ail isradd.
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