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Subtract 18/60 from 8/84

8/84 - 18/60 is -43/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 60 is 420
  2. For the 1st fraction, since 84 × 5 = 420,
    8/84 = 8 × 5/84 × 5 = 40/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    18/60 = 18 × 7/60 × 7 = 126/420
  4. Subtract the two fractions:
    40/420 - 126/420 = 40 - 126/420 = -86/420
  5. After reducing the fraction, the answer is -43/210

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