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Subtract 8/9 from 21/3

1st number: 7 0/3, 2nd number: 8/9

21/3 - 8/9 is 55/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 9 is 9

    Next, find the equivalent fraction of both fractional numbers with denominator 9
  2. For the 1st fraction, since 3 × 3 = 9,
    21/3 = 21 × 3/3 × 3 = 63/9
  3. Likewise, for the 2nd fraction, since 9 × 1 = 9,
    8/9 = 8 × 1/9 × 1 = 8/9
  4. Subtract the two like fractions:
    63/9 - 8/9 = 63 - 8/9 = 55/9
  5. In mixed form: 61/9

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