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Subtract 84/20 from 8/28

1st number: 8/28, 2nd number: 4 4/20

8/28 - 84/20 is -137/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 20 is 140
  2. For the 1st fraction, since 28 × 5 = 140,
    8/28 = 8 × 5/28 × 5 = 40/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    84/20 = 84 × 7/20 × 7 = 588/140
  4. Subtract the two fractions:
    40/140 - 588/140 = 40 - 588/140 = -548/140
  5. After reducing the fraction, the answer is -137/35

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