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Subtract 1/28 from 21/5

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

21/5 - 1/28 is 583/140.

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,
    1/28 = 1 × 5/28 × 5 = 5/140
  4. Subtract the two like fractions:
    588/140 - 5/140 = 588 - 5/140 = 583/140
  5. In mixed form: 423/140

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