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Subtract 50/20 from 4/84

1st number: 4/84, 2nd number: 2 10/20

4/84 - 50/20 is -103/42.

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,
    4/84 = 4 × 5/84 × 5 = 20/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    50/20 = 50 × 21/20 × 21 = 1050/420
  4. Subtract the two like fractions:
    20/420 - 1050/420 = 20 - 1050/420 = -1030/420
  5. After reducing the fraction, the answer is -103/42

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