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Subtract 3/42 from 14/18

14/18 - 3/42 is 89/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 42 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    14/18 = 14 × 7/18 × 7 = 98/126
  3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
    3/42 = 3 × 3/42 × 3 = 9/126
  4. Subtract the two like fractions:
    98/126 - 9/126 = 98 - 9/126 = 89/126

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