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Subtract 27/21 from 20/3

1st number: 6 2/3, 2nd number: 1 6/21

20/3 - 27/21 is 113/21.

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,
    20/3 = 20 × 7/3 × 7 = 140/21
  3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
    27/21 = 27 × 1/21 × 1 = 27/21
  4. Subtract the two like fractions:
    140/21 - 27/21 = 140 - 27/21 = 113/21
  5. In mixed form: 58/21

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