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Subtract 7/5 from 1/80

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

1/80 - 7/5 is -111/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 5 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    1/80 = 1 × 1/80 × 1 = 1/80
  3. Likewise, for the 2nd fraction, since 5 × 16 = 80,
    7/5 = 7 × 16/5 × 16 = 112/80
  4. Subtract the two like fractions:
    1/80 - 112/80 = 1 - 112/80 = -111/80

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