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Subtract 21/9 from 42/6

1st number: 7 0/6, 2nd number: 2 3/9

42/6 - 21/9 is 14/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 9 is 18
  2. For the 1st fraction, since 6 × 3 = 18,
    42/6 = 42 × 3/6 × 3 = 126/18
  3. Likewise, for the 2nd fraction, since 9 × 2 = 18,
    21/9 = 21 × 2/9 × 2 = 42/18
  4. Subtract the two fractions:
    126/18 - 42/18 = 126 - 42/18 = 84/18
  5. After reducing the fraction, the answer is 14/3
  6. In mixed form: 42/3

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