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Subtract 9/40 from 1/70

1/70 - 9/40 is -59/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 40 is 280
  2. For the 1st fraction, since 70 × 4 = 280,
    1/70 = 1 × 4/70 × 4 = 4/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    9/40 = 9 × 7/40 × 7 = 63/280
  4. Subtract the two fractions:
    4/280 - 63/280 = 4 - 63/280 = -59/280

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