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Subtract 18/60 from 8/72

8/72 - 18/60 is -17/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 60 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    8/72 = 8 × 5/72 × 5 = 40/360
  3. Likewise, for the 2nd fraction, since 60 × 6 = 360,
    18/60 = 18 × 6/60 × 6 = 108/360
  4. Subtract the two like fractions:
    40/360 - 108/360 = 40 - 108/360 = -68/360
  5. After reducing the fraction, the answer is -17/90

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