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Subtract 1/72 from 21/3

1st number: 7 0/3, 2nd number: 1/72

21/3 - 1/72 is 503/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 72 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 3 × 24 = 72,
    21/3 = 21 × 24/3 × 24 = 504/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    1/72 = 1 × 1/72 × 1 = 1/72
  4. Subtract the two like fractions:
    504/72 - 1/72 = 504 - 1/72 = 503/72
  5. In mixed form: 671/72

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