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Subtract 9/80 from 8/5

1st number: 1 3/5, 2nd number: 9/80

8/5 - 9/80 is 119/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 80 is 80
  2. For the 1st fraction, since 5 × 16 = 80,
    8/5 = 8 × 16/5 × 16 = 128/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    9/80 = 9 × 1/80 × 1 = 9/80
  4. Subtract the two fractions:
    128/80 - 9/80 = 128 - 9/80 = 119/80
  5. In mixed form: 139/80

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