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Subtract 56/21 from 48/81

1st number: 48/81, 2nd number: 2 14/21

48/81 - 56/21 is -56/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 21 is 567

    Next, find the equivalent fraction of both fractional numbers with denominator 567
  2. For the 1st fraction, since 81 × 7 = 567,
    48/81 = 48 × 7/81 × 7 = 336/567
  3. Likewise, for the 2nd fraction, since 21 × 27 = 567,
    56/21 = 56 × 27/21 × 27 = 1512/567
  4. Subtract the two like fractions:
    336/567 - 1512/567 = 336 - 1512/567 = -1176/567
  5. After reducing the fraction, the answer is -56/27

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