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Subtract 7/9 from 18/7

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

18/7 - 7/9 is 113/63.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 7 × 9 = 63,
    18/7 = 18 × 9/7 × 9 = 162/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    7/9 = 7 × 7/9 × 7 = 49/63
  4. Subtract the two like fractions:
    162/63 - 49/63 = 162 - 49/63 = 113/63
  5. In mixed form: 150/63

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