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Subtract 1/5 from 6/84

6/84 - 1/5 is -9/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 5 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    6/84 = 6 × 5/84 × 5 = 30/420
  3. Likewise, for the 2nd fraction, since 5 × 84 = 420,
    1/5 = 1 × 84/5 × 84 = 84/420
  4. Subtract the two like fractions:
    30/420 - 84/420 = 30 - 84/420 = -54/420
  5. After reducing the fraction, the answer is -9/70

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