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Subtract 21/4 from 1/28

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

1/28 - 21/4 is -73/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 4 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 28 × 1 = 28,
    1/28 = 1 × 1/28 × 1 = 1/28
  3. Likewise, for the 2nd fraction, since 4 × 7 = 28,
    21/4 = 21 × 7/4 × 7 = 147/28
  4. Subtract the two like fractions:
    1/28 - 147/28 = 1 - 147/28 = -146/28
  5. After reducing the fraction, the answer is -73/14

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