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Subtract 25/35 from 1/42

1/42 - 25/35 is -29/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 35 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 42 × 5 = 210,
    1/42 = 1 × 5/42 × 5 = 5/210
  3. Likewise, for the 2nd fraction, since 35 × 6 = 210,
    25/35 = 25 × 6/35 × 6 = 150/210
  4. Subtract the two like fractions:
    5/210 - 150/210 = 5 - 150/210 = -145/210
  5. After reducing the fraction, the answer is -29/42

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