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Subtract 28/16 from 28/90

1st number: 28/90, 2nd number: 1 12/16

28/90 - 28/16 is -259/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 16 is 720
  2. For the 1st fraction, since 90 × 8 = 720,
    28/90 = 28 × 8/90 × 8 = 224/720
  3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
    28/16 = 28 × 45/16 × 45 = 1260/720
  4. Subtract the two fractions:
    224/720 - 1260/720 = 224 - 1260/720 = -1036/720
  5. After reducing the fraction, the answer is -259/180

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