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Subtract 1/7 from 10/20

10/20 - 1/7 is 5/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    10/20 = 10 × 7/20 × 7 = 70/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    1/7 = 1 × 20/7 × 20 = 20/140
  4. Subtract the two fractions:
    70/140 - 20/140 = 70 - 20/140 = 50/140
  5. After reducing the fraction, the answer is 5/14

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