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Subtract 70/9 from 81/49

1st number: 1 32/49, 2nd number: 7 7/9

81/49 - 70/9 is -2701/441.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 9 is 441

    Next, find the equivalent fraction of both fractional numbers with denominator 441
  2. For the 1st fraction, since 49 × 9 = 441,
    81/49 = 81 × 9/49 × 9 = 729/441
  3. Likewise, for the 2nd fraction, since 9 × 49 = 441,
    70/9 = 70 × 49/9 × 49 = 3430/441
  4. Subtract the two like fractions:
    729/441 - 3430/441 = 729 - 3430/441 = -2701/441

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