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Subtract 80/75 from 1/28

1st number: 1/28, 2nd number: 1 5/75

1/28 - 80/75 is -433/420.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 75 is 2100

    Next, find the equivalent fraction of both fractional numbers with denominator 2100
  2. For the 1st fraction, since 28 × 75 = 2100,
    1/28 = 1 × 75/28 × 75 = 75/2100
  3. Likewise, for the 2nd fraction, since 75 × 28 = 2100,
    80/75 = 80 × 28/75 × 28 = 2240/2100
  4. Subtract the two like fractions:
    75/2100 - 2240/2100 = 75 - 2240/2100 = -2165/2100
  5. After reducing the fraction, the answer is -433/420

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