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Subtract 5/70 from 3/84

3/84 - 5/70 is -1/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 70 is 420
  2. For the 1st fraction, since 84 × 5 = 420,
    3/84 = 3 × 5/84 × 5 = 15/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    5/70 = 5 × 6/70 × 6 = 30/420
  4. Subtract the two fractions:
    15/420 - 30/420 = 15 - 30/420 = -15/420
  5. After reducing the fraction, the answer is -1/28

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