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Subtract 28/40 from 14/80

14/80 - 28/40 is -21/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 40 is 80
  2. For the 1st fraction, since 80 × 1 = 80,
    14/80 = 14 × 1/80 × 1 = 14/80
  3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
    28/40 = 28 × 2/40 × 2 = 56/80
  4. Subtract the two fractions:
    14/80 - 56/80 = 14 - 56/80 = -42/80
  5. After reducing the fraction, the answer is -21/40

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