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Subtract 4/7 from 7/28

7/28 - 4/7 is -9/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 7 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 28 × 1 = 28,
    7/28 = 7 × 1/28 × 1 = 7/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    4/7 = 4 × 4/7 × 4 = 16/28
  4. Subtract the two like fractions:
    7/28 - 16/28 = 7 - 16/28 = -9/28

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