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Subtract 10/21 from 27/3

1st number: 9 0/3, 2nd number: 10/21

27/3 - 10/21 is 179/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 21 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    27/3 = 27 × 7/3 × 7 = 189/21
  3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
    10/21 = 10 × 1/21 × 1 = 10/21
  4. Subtract the two like fractions:
    189/21 - 10/21 = 189 - 10/21 = 179/21
  5. In mixed form: 811/21

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