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Subtract 18/70 from 9/56

9/56 - 18/70 is -27/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 70 is 280
  2. For the 1st fraction, since 56 × 5 = 280,
    9/56 = 9 × 5/56 × 5 = 45/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    18/70 = 18 × 4/70 × 4 = 72/280
  4. Subtract the two fractions:
    45/280 - 72/280 = 45 - 72/280 = -27/280

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