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Subtract 81/7 from 4/9

1st number: 4/9, 2nd number: 11 4/7

4/9 - 81/7 is -701/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 7 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 9 × 7 = 63,
    4/9 = 4 × 7/9 × 7 = 28/63
  3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
    81/7 = 81 × 9/7 × 9 = 729/63
  4. Subtract the two like fractions:
    28/63 - 729/63 = 28 - 729/63 = -701/63

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