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Subtract 35/21 from 20/8

1st number: 2 4/8, 2nd number: 1 14/21

20/8 - 35/21 is 5/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 21 is 168
  2. For the 1st fraction, since 8 × 21 = 168,
    20/8 = 20 × 21/8 × 21 = 420/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    35/21 = 35 × 8/21 × 8 = 280/168
  4. Subtract the two fractions:
    420/168 - 280/168 = 420 - 280/168 = 140/168
  5. After reducing the fraction, the answer is 5/6

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