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Subtract 25/7 from 1/42

1st number: 1/42, 2nd number: 3 4/7

1/42 - 25/7 is -149/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 7 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 42 × 1 = 42,
    1/42 = 1 × 1/42 × 1 = 1/42
  3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
    25/7 = 25 × 6/7 × 6 = 150/42
  4. Subtract the two like fractions:
    1/42 - 150/42 = 1 - 150/42 = -149/42

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