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Subtract 10/63 from 6/42

6/42 - 10/63 is -1/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 63 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 42 × 3 = 126,
    6/42 = 6 × 3/42 × 3 = 18/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    10/63 = 10 × 2/63 × 2 = 20/126
  4. Subtract the two like fractions:
    18/126 - 20/126 = 18 - 20/126 = -2/126
  5. After reducing the fraction, the answer is -1/63

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