Pa ffracsiwn sy'n gywerth â \(\frac{1}{3}\)?
\[\frac{3}{10}\]
\[\frac{5}{15}\]
\[\frac{10}{13}\]
Beth ydy \(\frac{4}{20}\) yn ei ffurf symlaf?
\[\frac{1}{4}\]
\[\frac{1}{5}\]
\[\frac{2}{10}\]
Beth ydy \({1}\frac{3}{4}\) fel ffracsiwn pendrwm?
\[\frac{7}{4}\]
\[\frac{8}{4}\]
\[\frac{13}{4}\]
Beth ydy \(\frac{15}{4}\) fel rhif cymysg?
\[{3}\frac{1}{4}\]
\[{3}\frac{1}{2}\]
\[{3}\frac{3}{4}\]
Pa un ydy'r mwyaf?
\[\frac{4}{9}\]
\[\frac{1}{3}\]
\[\frac{4}{7}\]
\[\frac{3}{4}+\frac{1}{8}=\]
\[\frac{7}{8}\]
\[\frac{4}{12}\]
\[\frac{1}{2}\]
\[\frac{3}{5}-\frac{1}{9}=\]
\[\frac{21}{45}\]
\[\frac{22}{45}\]
\[\frac{23}{45}\]
\[\frac{5}{6}\times\frac{2}{3}=\]
\[\frac{10}{18}\]
\[\frac{7}{9}\]
\[{\frac{5}{9}}\]
\[\frac{7}{10}\div\frac{1}{4}=\]
\[\frac{7}{40}\]
\[\frac{28}{10}\]
\[{2}\frac{4}{5}\]
Mae Nia'n cael \({7}\) allan o \({25}\) cwestiwn yn anghywir yn ei phrawf mathemateg. Pa ffracsiwn o'r cwestiynau mae Nia'n eu hateb yn gywir?
\[\frac{7}{25}\]
\[\frac{18}{25}\]
\[\frac{7}{18}\]