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Ffracsiynau

Ffracsiynau. Ffracsiynau. Lluosi a rhannu. Lluosi. 2. 1. 1 4. 2 5. x. =. =. 20. 10. Lluosi’r rhifiadur (numerator – top) Lluosi’r enwadur (denominator – gwaelod) Symleiddio!. Rhannu. 6. 2 7. 2 7. 3 1. 1 3. =. =. ÷. x. 7.

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Ffracsiynau

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  1. Ffracsiynau

  2. Ffracsiynau Lluosi a rhannu

  3. Lluosi 2 1 1 4 2 5 x = = 20 10 • Lluosi’r rhifiadur (numerator – top) • Lluosi’r enwadur (denominator – gwaelod) • Symleiddio!

  4. Rhannu 6 2 7 2 7 3 1 1 3 = = ÷ x 7 • Cyn dechrau’r camau, y tro hwn mae angen troi’r ail ffracsiwn ben-i-waered, a newid yr arwydd rhannu i luosi. Wedyn: • Lluosi’r rhifiadur (numerator – top) • Lluosi’r enwadur (denominator – gwaelod) • Symleiddio!

  5. Ffracsiynau Ffracsiwn pendrwm Adio a thynnu Ffracsiwn Enwadur Rhifiadur

  6. Adio 8 5 + 1 4 2 5 + = 20 13 = 20

  7. Tynnu 8 5 - 1 4 2 5 - = 20 3 = 20

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