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Subtract 6/49 from 4/42

4/42 - 6/49 is -4/147.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 49 is 294

    Next, find the equivalent fraction of both fractional numbers with denominator 294
  2. For the 1st fraction, since 42 × 7 = 294,
    4/42 = 4 × 7/42 × 7 = 28/294
  3. Likewise, for the 2nd fraction, since 49 × 6 = 294,
    6/49 = 6 × 6/49 × 6 = 36/294
  4. Subtract the two like fractions:
    28/294 - 36/294 = 28 - 36/294 = -8/294
  5. After reducing the fraction, the answer is -4/147

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