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Subtract 10/42 from 2/12

2/12 - 10/42 is -1/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 42 is 84
  2. For the 1st fraction, since 12 × 7 = 84,
    2/12 = 2 × 7/12 × 7 = 14/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    10/42 = 10 × 2/42 × 2 = 20/84
  4. Subtract the two fractions:
    14/84 - 20/84 = 14 - 20/84 = -6/84
  5. After reducing the fraction, the answer is -1/14

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