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Subtract 4/24 from 1/42

1/42 - 4/24 is -1/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 24 is 168
  2. For the 1st fraction, since 42 × 4 = 168,
    1/42 = 1 × 4/42 × 4 = 4/168
  3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
    4/24 = 4 × 7/24 × 7 = 28/168
  4. Subtract the two fractions:
    4/168 - 28/168 = 4 - 28/168 = -24/168
  5. After reducing the fraction, the answer is -1/7

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