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Subtract 9/70 from 9/40

9/40 - 9/70 is 27/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 70 is 280
  2. For the 1st fraction, since 40 × 7 = 280,
    9/40 = 9 × 7/40 × 7 = 63/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    9/70 = 9 × 4/70 × 4 = 36/280
  4. Subtract the two fractions:
    63/280 - 36/280 = 63 - 36/280 = 27/280

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