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Subtract 56/18 from 18/80

1st number: 18/80, 2nd number: 3 2/18

18/80 - 56/18 is -1039/360.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 18 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    18/80 = 18 × 9/80 × 9 = 162/720
  3. Likewise, for the 2nd fraction, since 18 × 40 = 720,
    56/18 = 56 × 40/18 × 40 = 2240/720
  4. Subtract the two like fractions:
    162/720 - 2240/720 = 162 - 2240/720 = -2078/720
  5. After reducing the fraction, the answer is -1039/360

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