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Subtract 20/60 from 2/42

2/42 - 20/60 is -2/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 42 × 10 = 420,
    2/42 = 2 × 10/42 × 10 = 20/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    20/60 = 20 × 7/60 × 7 = 140/420
  4. Subtract the two like fractions:
    20/420 - 140/420 = 20 - 140/420 = -120/420
  5. After reducing the fraction, the answer is -2/7

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