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Subtract 2/30 from 81/12

1st number: 6 9/12, 2nd number: 2/30

81/12 - 2/30 is 401/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 30 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    81/12 = 81 × 5/12 × 5 = 405/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    2/30 = 2 × 2/30 × 2 = 4/60
  4. Subtract the two like fractions:
    405/60 - 4/60 = 405 - 4/60 = 401/60
  5. In mixed form: 641/60

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