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Subtract 10/9 from 12/7

1st number: 1 5/7, 2nd number: 1 1/9

12/7 - 10/9 is 38/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 9 is 63
  2. For the 1st fraction, since 7 × 9 = 63,
    12/7 = 12 × 9/7 × 9 = 108/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    10/9 = 10 × 7/9 × 7 = 70/63
  4. Subtract the two fractions:
    108/63 - 70/63 = 108 - 70/63 = 38/63

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