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Subtract 35/12 from 42/30

1st number: 1 12/30, 2nd number: 2 11/12

42/30 - 35/12 is -91/60.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 30 × 2 = 60,
    42/30 = 42 × 2/30 × 2 = 84/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    35/12 = 35 × 5/12 × 5 = 175/60
  4. Subtract the two like fractions:
    84/60 - 175/60 = 84 - 175/60 = -91/60

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