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Subtract 35/18 from 84/80

1st number: 1 4/80, 2nd number: 1 17/18

84/80 - 35/18 is -161/180.

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,
    84/80 = 84 × 9/80 × 9 = 756/720
  3. Likewise, for the 2nd fraction, since 18 × 40 = 720,
    35/18 = 35 × 40/18 × 40 = 1400/720
  4. Subtract the two like fractions:
    756/720 - 1400/720 = 756 - 1400/720 = -644/720
  5. After reducing the fraction, the answer is -161/180

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