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Subtract 2/30 from 21/12

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

21/12 - 2/30 is 101/60.

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,
    21/12 = 21 × 5/12 × 5 = 105/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    2/30 = 2 × 2/30 × 2 = 4/60
  4. Subtract the two like fractions:
    105/60 - 4/60 = 105 - 4/60 = 101/60
  5. In mixed form: 141/60

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