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Subtract 21/27 from 42/6

1st number: 7 0/6, 2nd number: 21/27

42/6 - 21/27 is 56/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 27 is 54
  2. For the 1st fraction, since 6 × 9 = 54,
    42/6 = 42 × 9/6 × 9 = 378/54
  3. Likewise, for the 2nd fraction, since 27 × 2 = 54,
    21/27 = 21 × 2/27 × 2 = 42/54
  4. Subtract the two fractions:
    378/54 - 42/54 = 378 - 42/54 = 336/54
  5. After reducing the fraction, the answer is 56/9
  6. In mixed form: 62/9

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