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Subtract 28/21 from 25/4

1st number: 6 1/4, 2nd number: 1 7/21

25/4 - 28/21 is 59/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 21 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 4 × 21 = 84,
    25/4 = 25 × 21/4 × 21 = 525/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    28/21 = 28 × 4/21 × 4 = 112/84
  4. Subtract the two like fractions:
    525/84 - 112/84 = 525 - 112/84 = 413/84
  5. After reducing the fraction, the answer is 59/12
  6. In mixed form: 411/12

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