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Subtract 1/72 from 21/6

1st number: 3 3/6, 2nd number: 1/72

21/6 - 1/72 is 251/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 72 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 6 × 12 = 72,
    21/6 = 21 × 12/6 × 12 = 252/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    1/72 = 1 × 1/72 × 1 = 1/72
  4. Subtract the two like fractions:
    252/72 - 1/72 = 252 - 1/72 = 251/72
  5. In mixed form: 335/72

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