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Subtract 2/7 from 2/20

2/20 - 2/7 is -13/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    2/20 = 2 × 7/20 × 7 = 14/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    2/7 = 2 × 20/7 × 20 = 40/140
  4. Subtract the two like fractions:
    14/140 - 40/140 = 14 - 40/140 = -26/140
  5. After reducing the fraction, the answer is -13/70

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