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Subtract 9/42 from 5/10

5/10 - 9/42 is 2/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    5/10 = 5 × 21/10 × 21 = 105/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    9/42 = 9 × 5/42 × 5 = 45/210
  4. Subtract the two like fractions:
    105/210 - 45/210 = 105 - 45/210 = 60/210
  5. After reducing the fraction, the answer is 2/7

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