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Subtract 21/27 from 42/14

1st number: 3 0/14, 2nd number: 21/27

42/14 - 21/27 is 20/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 27 is 378
  2. For the 1st fraction, since 14 × 27 = 378,
    42/14 = 42 × 27/14 × 27 = 1134/378
  3. Likewise, for the 2nd fraction, since 27 × 14 = 378,
    21/27 = 21 × 14/27 × 14 = 294/378
  4. Subtract the two fractions:
    1134/378 - 294/378 = 1134 - 294/378 = 840/378
  5. After reducing the fraction, the answer is 20/9
  6. In mixed form: 22/9

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