Enrhifo
2
Ffactor
2
Rhannu
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3-\frac{\left(3\times 4+1\right)\times 2}{4\left(2\times 2+1\right)}+0.3
Rhannwch \frac{3\times 4+1}{4} â \frac{2\times 2+1}{2} drwy luosi \frac{3\times 4+1}{4} â chilydd \frac{2\times 2+1}{2}.
3-\frac{1+3\times 4}{2\left(1+2\times 2\right)}+0.3
Canslo 2 yn y rhifiadur a'r enwadur.
3-\frac{1+12}{2\left(1+2\times 2\right)}+0.3
Lluosi 3 a 4 i gael 12.
3-\frac{13}{2\left(1+2\times 2\right)}+0.3
Adio 1 a 12 i gael 13.
3-\frac{13}{2\left(1+4\right)}+0.3
Lluosi 2 a 2 i gael 4.
3-\frac{13}{2\times 5}+0.3
Adio 1 a 4 i gael 5.
3-\frac{13}{10}+0.3
Lluosi 2 a 5 i gael 10.
\frac{30}{10}-\frac{13}{10}+0.3
Troswch y rhif degol 3 i’r ffracsiwn \frac{30}{10}.
\frac{30-13}{10}+0.3
Gan fod gan \frac{30}{10} a \frac{13}{10} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.
\frac{17}{10}+0.3
Tynnu 13 o 30 i gael 17.
\frac{17}{10}+\frac{3}{10}
Troswch y rhif degol 0.3 i’r ffracsiwn \frac{3}{10}.
\frac{17+3}{10}
Gan fod gan \frac{17}{10} a \frac{3}{10} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.
\frac{20}{10}
Adio 17 a 3 i gael 20.
2
Rhannu 20 â 10 i gael 2.
Enghreifftiau
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699 * 533
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