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Subtract 14/84 from 21/5

1st number: 4 1/5, 2nd number: 14/84

21/5 - 14/84 is 121/30.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 5 × 84 = 420,
    21/5 = 21 × 84/5 × 84 = 1764/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    14/84 = 14 × 5/84 × 5 = 70/420
  4. Subtract the two like fractions:
    1764/420 - 70/420 = 1764 - 70/420 = 1694/420
  5. After reducing the fraction, the answer is 121/30
  6. In mixed form: 41/30

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