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Subtract 10/42 from 2/9

2/9 - 10/42 is -1/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 42 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 9 × 14 = 126,
    2/9 = 2 × 14/9 × 14 = 28/126
  3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
    10/42 = 10 × 3/42 × 3 = 30/126
  4. Subtract the two like fractions:
    28/126 - 30/126 = 28 - 30/126 = -2/126
  5. After reducing the fraction, the answer is -1/63

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