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Subtract 21/25 from 1/45

1/45 - 21/25 is -184/225.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 25 is 225

    Next, find the equivalent fraction of both fractional numbers with denominator 225
  2. For the 1st fraction, since 45 × 5 = 225,
    1/45 = 1 × 5/45 × 5 = 5/225
  3. Likewise, for the 2nd fraction, since 25 × 9 = 225,
    21/25 = 21 × 9/25 × 9 = 189/225
  4. Subtract the two like fractions:
    5/225 - 189/225 = 5 - 189/225 = -184/225

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