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Subtract 2/45 from 8/42

8/42 - 2/45 is 46/315.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 45 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 42 × 15 = 630,
    8/42 = 8 × 15/42 × 15 = 120/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    2/45 = 2 × 14/45 × 14 = 28/630
  4. Subtract the two like fractions:
    120/630 - 28/630 = 120 - 28/630 = 92/630
  5. After reducing the fraction, the answer is 46/315

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