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Subtract 63/20 from 5/84

1st number: 5/84, 2nd number: 3 3/20

5/84 - 63/20 is -649/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 20 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    5/84 = 5 × 5/84 × 5 = 25/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    63/20 = 63 × 21/20 × 21 = 1323/420
  4. Subtract the two like fractions:
    25/420 - 1323/420 = 25 - 1323/420 = -1298/420
  5. After reducing the fraction, the answer is -649/210

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