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396=50\times 180\times 10^{-6}
Lluosi 36 a 11 i gael 396.
396=9000\times 10^{-6}
Lluosi 50 a 180 i gael 9000.
396=9000\times \frac{1}{1000000}
Cyfrifo 10 i bŵer -6 a chael \frac{1}{1000000}.
396=\frac{9}{1000}
Lluosi 9000 a \frac{1}{1000000} i gael \frac{9}{1000}.
\frac{396000}{1000}=\frac{9}{1000}
Troswch y rhif degol 396 i’r ffracsiwn \frac{396000}{1000}.
\text{false}
Cymharu \frac{396000}{1000} gyda \frac{9}{1000}.
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