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Rhannu
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\frac{3}{4}\times 10=\frac{1}{5}\left(2-12\right)
Adio 2 a 8 i gael 10.
\frac{3\times 10}{4}=\frac{1}{5}\left(2-12\right)
Mynegwch \frac{3}{4}\times 10 fel ffracsiwn unigol.
\frac{30}{4}=\frac{1}{5}\left(2-12\right)
Lluosi 3 a 10 i gael 30.
\frac{15}{2}=\frac{1}{5}\left(2-12\right)
Lleihau'r ffracsiwn \frac{30}{4} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.
\frac{15}{2}=\frac{1}{5}\left(-10\right)
Tynnu 12 o 2 i gael -10.
\frac{15}{2}=\frac{-10}{5}
Lluosi \frac{1}{5} a -10 i gael \frac{-10}{5}.
\frac{15}{2}=-2
Rhannu -10 â 5 i gael -2.
\frac{15}{2}=-\frac{4}{2}
Troswch y rhif degol -2 i’r ffracsiwn -\frac{4}{2}.
\text{false}
Cymharu \frac{15}{2} gyda -\frac{4}{2}.
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