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Subtract 70/81 from 6/63

6/63 - 70/81 is -436/567.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 81 is 567
  2. For the 1st fraction, since 63 × 9 = 567,
    6/63 = 6 × 9/63 × 9 = 54/567
  3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
    70/81 = 70 × 7/81 × 7 = 490/567
  4. Subtract the two fractions:
    54/567 - 490/567 = 54 - 490/567 = -436/567

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