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Subtract 20/21 from 35/8

1st number: 4 3/8, 2nd number: 20/21

35/8 - 20/21 is 575/168.

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,
    35/8 = 35 × 21/8 × 21 = 735/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    20/21 = 20 × 8/21 × 8 = 160/168
  4. Subtract the two fractions:
    735/168 - 160/168 = 735 - 160/168 = 575/168
  5. In mixed form: 371/168

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