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Subtract 3/28 from 21/5

1st number: 4 1/5, 2nd number: 3/28

21/5 - 3/28 is 573/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 28 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 5 × 28 = 140,
    21/5 = 21 × 28/5 × 28 = 588/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    3/28 = 3 × 5/28 × 5 = 15/140
  4. Subtract the two like fractions:
    588/140 - 15/140 = 588 - 15/140 = 573/140
  5. In mixed form: 413/140

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