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Subtract 35/9 from 28/20

1st number: 1 8/20, 2nd number: 3 8/9

28/20 - 35/9 is -112/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    28/20 = 28 × 9/20 × 9 = 252/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    35/9 = 35 × 20/9 × 20 = 700/180
  4. Subtract the two fractions:
    252/180 - 700/180 = 252 - 700/180 = -448/180
  5. After reducing the fraction, the answer is -112/45

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