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Subtract 21/12 from 7/75

1st number: 7/75, 2nd number: 1 9/12

7/75 - 21/12 is -497/300.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 12 is 300

    Next, find the equivalent fraction of both fractional numbers with denominator 300
  2. For the 1st fraction, since 75 × 4 = 300,
    7/75 = 7 × 4/75 × 4 = 28/300
  3. Likewise, for the 2nd fraction, since 12 × 25 = 300,
    21/12 = 21 × 25/12 × 25 = 525/300
  4. Subtract the two like fractions:
    28/300 - 525/300 = 28 - 525/300 = -497/300

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