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Subtract 20/21 from 5/32

5/32 - 20/21 is -535/672.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 32 and 21 is 672

    Next, find the equivalent fraction of both fractional numbers with denominator 672
  2. For the 1st fraction, since 32 × 21 = 672,
    5/32 = 5 × 21/32 × 21 = 105/672
  3. Likewise, for the 2nd fraction, since 21 × 32 = 672,
    20/21 = 20 × 32/21 × 32 = 640/672
  4. Subtract the two like fractions:
    105/672 - 640/672 = 105 - 640/672 = -535/672

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