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Subtract 27/35 from 81/80

1st number: 1 1/80, 2nd number: 27/35

81/80 - 27/35 is 27/112.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 35 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    81/80 = 81 × 7/80 × 7 = 567/560
  3. Likewise, for the 2nd fraction, since 35 × 16 = 560,
    27/35 = 27 × 16/35 × 16 = 432/560
  4. Subtract the two like fractions:
    567/560 - 432/560 = 567 - 432/560 = 135/560
  5. After reducing the fraction, the answer is 27/112

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