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Subtract 1/80 from 7/4

1st number: 1 3/4, 2nd number: 1/80

7/4 - 1/80 is 139/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 4 × 20 = 80,
    7/4 = 7 × 20/4 × 20 = 140/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    1/80 = 1 × 1/80 × 1 = 1/80
  4. Subtract the two like fractions:
    140/80 - 1/80 = 140 - 1/80 = 139/80
  5. In mixed form: 159/80

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