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Subtract 12/45 from 4/70

4/70 - 12/45 is -22/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 45 is 630
  2. For the 1st fraction, since 70 × 9 = 630,
    4/70 = 4 × 9/70 × 9 = 36/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    12/45 = 12 × 14/45 × 14 = 168/630
  4. Subtract the two fractions:
    36/630 - 168/630 = 36 - 168/630 = -132/630
  5. After reducing the fraction, the answer is -22/105

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