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Subtract 42/30 from 1/4

1st number: 1/4, 2nd number: 1 12/30

1/4 - 42/30 is -23/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 30 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 4 × 15 = 60,
    1/4 = 1 × 15/4 × 15 = 15/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    42/30 = 42 × 2/30 × 2 = 84/60
  4. Subtract the two like fractions:
    15/60 - 84/60 = 15 - 84/60 = -69/60
  5. After reducing the fraction, the answer is -23/20

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