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Subtract 6/9 from 45/70

45/70 - 6/9 is -1/42.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    45/70 = 45 × 9/70 × 9 = 405/630
  3. Likewise, for the 2nd fraction, since 9 × 70 = 630,
    6/9 = 6 × 70/9 × 70 = 420/630
  4. Subtract the two like fractions:
    405/630 - 420/630 = 405 - 420/630 = -15/630
  5. After reducing the fraction, the answer is -1/42

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