Enrhifo
-\frac{1061}{10}=-106.1
Ffactor
-\frac{1061}{10} = -106\frac{1}{10} = -106.1
Rhannu
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-99-71\times \frac{1}{10}
Tynnu 129 o 30 i gael -99.
-99-\frac{71}{10}
Lluosi 71 a \frac{1}{10} i gael \frac{71}{10}.
-\frac{990}{10}-\frac{71}{10}
Troswch y rhif degol -99 i’r ffracsiwn -\frac{990}{10}.
\frac{-990-71}{10}
Gan fod gan -\frac{990}{10} a \frac{71}{10} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.
-\frac{1061}{10}
Tynnu 71 o -990 i gael -1061.
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