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Subtract 9/4 from 1/80

1st number: 1/80, 2nd number: 2 1/4

1/80 - 9/4 is -179/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 4 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 4 × 20 = 80,
    9/4 = 9 × 20/4 × 20 = 180/80
  4. Subtract the two like fractions:
    1/80 - 180/80 = 1 - 180/80 = -179/80

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