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Subtract 8/42 from 45/70

45/70 - 8/42 is 19/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 70 × 3 = 210,
    45/70 = 45 × 3/70 × 3 = 135/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    8/42 = 8 × 5/42 × 5 = 40/210
  4. Subtract the two like fractions:
    135/210 - 40/210 = 135 - 40/210 = 95/210
  5. After reducing the fraction, the answer is 19/42

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