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Subtract 45/70 from 4/9

4/9 - 45/70 is -25/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 9 × 70 = 630,
    4/9 = 4 × 70/9 × 70 = 280/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    45/70 = 45 × 9/70 × 9 = 405/630
  4. Subtract the two like fractions:
    280/630 - 405/630 = 280 - 405/630 = -125/630
  5. After reducing the fraction, the answer is -25/126

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