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Subtract 15/70 from 9/18

9/18 - 15/70 is 2/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 18 × 35 = 630,
    9/18 = 9 × 35/18 × 35 = 315/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    15/70 = 15 × 9/70 × 9 = 135/630
  4. Subtract the two like fractions:
    315/630 - 135/630 = 315 - 135/630 = 180/630
  5. After reducing the fraction, the answer is 2/7

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