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Subtract 80/27 from 21/2

1st number: 10 1/2, 2nd number: 2 26/27

21/2 - 80/27 is 407/54.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 27 is 54

    Next, find the equivalent fraction of both fractional numbers with denominator 54
  2. For the 1st fraction, since 2 × 27 = 54,
    21/2 = 21 × 27/2 × 27 = 567/54
  3. Likewise, for the 2nd fraction, since 27 × 2 = 54,
    80/27 = 80 × 2/27 × 2 = 160/54
  4. Subtract the two like fractions:
    567/54 - 160/54 = 567 - 160/54 = 407/54
  5. In mixed form: 729/54

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