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Subtract 2/84 from 30/20

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

30/20 - 2/84 is 31/21.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    30/20 = 30 × 21/20 × 21 = 630/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    2/84 = 2 × 5/84 × 5 = 10/420
  4. Subtract the two like fractions:
    630/420 - 10/420 = 630 - 10/420 = 620/420
  5. After reducing the fraction, the answer is 31/21
  6. In mixed form: 110/21

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