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Subtract 3/28 from 5/20

5/20 - 3/28 is 1/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 28 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    5/20 = 5 × 7/20 × 7 = 35/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    3/28 = 3 × 5/28 × 5 = 15/140
  4. Subtract the two fractions:
    35/140 - 15/140 = 35 - 15/140 = 20/140
  5. After reducing the fraction, the answer is 1/7

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