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Subtract 21/32 from 8/28

8/28 - 21/32 is -83/224.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 32 is 224

    Next, find the equivalent fraction of both fractional numbers with denominator 224
  2. For the 1st fraction, since 28 × 8 = 224,
    8/28 = 8 × 8/28 × 8 = 64/224
  3. Likewise, for the 2nd fraction, since 32 × 7 = 224,
    21/32 = 21 × 7/32 × 7 = 147/224
  4. Subtract the two like fractions:
    64/224 - 147/224 = 64 - 147/224 = -83/224

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