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Subtract 4/80 from 28/36

28/36 - 4/80 is 131/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 80 is 720
  2. For the 1st fraction, since 36 × 20 = 720,
    28/36 = 28 × 20/36 × 20 = 560/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    4/80 = 4 × 9/80 × 9 = 36/720
  4. Subtract the two fractions:
    560/720 - 36/720 = 560 - 36/720 = 524/720
  5. After reducing the fraction, the answer is 131/180

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