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Subtract 21/45 from 7/96

7/96 - 21/45 is -63/160.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 96 and 45 is 1440

    Next, find the equivalent fraction of both fractional numbers with denominator 1440
  2. For the 1st fraction, since 96 × 15 = 1440,
    7/96 = 7 × 15/96 × 15 = 105/1440
  3. Likewise, for the 2nd fraction, since 45 × 32 = 1440,
    21/45 = 21 × 32/45 × 32 = 672/1440
  4. Subtract the two like fractions:
    105/1440 - 672/1440 = 105 - 672/1440 = -567/1440
  5. After reducing the fraction, the answer is -63/160

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