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Subtract 21/81 from 24/8

1st number: 3 0/8, 2nd number: 21/81

24/8 - 21/81 is 74/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 81 is 648

    Next, find the equivalent fraction of both fractional numbers with denominator 648
  2. For the 1st fraction, since 8 × 81 = 648,
    24/8 = 24 × 81/8 × 81 = 1944/648
  3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
    21/81 = 21 × 8/81 × 8 = 168/648
  4. Subtract the two like fractions:
    1944/648 - 168/648 = 1944 - 168/648 = 1776/648
  5. After reducing the fraction, the answer is 74/27
  6. In mixed form: 220/27

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