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Subtract 45/28 from 5/42

1st number: 5/42, 2nd number: 1 17/28

5/42 - 45/28 is -125/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 28 is 84
  2. For the 1st fraction, since 42 × 2 = 84,
    5/42 = 5 × 2/42 × 2 = 10/84
  3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
    45/28 = 45 × 3/28 × 3 = 135/84
  4. Subtract the two fractions:
    10/84 - 135/84 = 10 - 135/84 = -125/84

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