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Subtract 21/32 from 10/18

10/18 - 21/32 is -29/288.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 32 is 288

    Next, find the equivalent fraction of both fractional numbers with denominator 288
  2. For the 1st fraction, since 18 × 16 = 288,
    10/18 = 10 × 16/18 × 16 = 160/288
  3. Likewise, for the 2nd fraction, since 32 × 9 = 288,
    21/32 = 21 × 9/32 × 9 = 189/288
  4. Subtract the two like fractions:
    160/288 - 189/288 = 160 - 189/288 = -29/288

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