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Subtract 35/18 from 90/7

1st number: 12 6/7, 2nd number: 1 17/18

90/7 - 35/18 is 1375/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 7 × 18 = 126,
    90/7 = 90 × 18/7 × 18 = 1620/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    35/18 = 35 × 7/18 × 7 = 245/126
  4. Subtract the two like fractions:
    1620/126 - 245/126 = 1620 - 245/126 = 1375/126
  5. In mixed form: 10115/126

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