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Subtract 9/18 from 1/70

1/70 - 9/18 is -17/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 18 is 630
  2. For the 1st fraction, since 70 × 9 = 630,
    1/70 = 1 × 9/70 × 9 = 9/630
  3. Likewise, for the 2nd fraction, since 18 × 35 = 630,
    9/18 = 9 × 35/18 × 35 = 315/630
  4. Subtract the two fractions:
    9/630 - 315/630 = 9 - 315/630 = -306/630
  5. After reducing the fraction, the answer is -17/35

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