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Subtract 6/8 from 42/2

1st number: 21 0/2, 2nd number: 6/8

42/2 - 6/8 is 81/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 8 is 8
  2. For the 1st fraction, since 2 × 4 = 8,
    42/2 = 42 × 4/2 × 4 = 168/8
  3. Likewise, for the 2nd fraction, since 8 × 1 = 8,
    6/8 = 6 × 1/8 × 1 = 6/8
  4. Subtract the two fractions:
    168/8 - 6/8 = 168 - 6/8 = 162/8
  5. After reducing the fraction, the answer is 81/4
  6. In mixed form: 201/4

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