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Subtract 21/42 from 8/6

1st number: 1 2/6, 2nd number: 21/42

8/6 - 21/42 is 5/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 42 is 42
  2. For the 1st fraction, since 6 × 7 = 42,
    8/6 = 8 × 7/6 × 7 = 56/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    21/42 = 21 × 1/42 × 1 = 21/42
  4. Subtract the two fractions:
    56/42 - 21/42 = 56 - 21/42 = 35/42
  5. After reducing the fraction, the answer is 5/6

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