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Subtract 9/7 from 7/2

1st number: 3 1/2, 2nd number: 1 2/7

7/2 - 9/7 is 31/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 7 is 14

    Next, find the equivalent fraction of both fractional numbers with denominator 14
  2. For the 1st fraction, since 2 × 7 = 14,
    7/2 = 7 × 7/2 × 7 = 49/14
  3. Likewise, for the 2nd fraction, since 7 × 2 = 14,
    9/7 = 9 × 2/7 × 2 = 18/14
  4. Subtract the two like fractions:
    49/14 - 18/14 = 49 - 18/14 = 31/14
  5. In mixed form: 23/14

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