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Subtract 35/45 from 12/28

12/28 - 35/45 is -22/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 45 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    12/28 = 12 × 45/28 × 45 = 540/1260
  3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
    35/45 = 35 × 28/45 × 28 = 980/1260
  4. Subtract the two like fractions:
    540/1260 - 980/1260 = 540 - 980/1260 = -440/1260
  5. After reducing the fraction, the answer is -22/63

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