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Subtract 2/21 from 45/8

1st number: 5 5/8, 2nd number: 2/21

45/8 - 2/21 is 929/168.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 21 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 8 × 21 = 168,
    45/8 = 45 × 21/8 × 21 = 945/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    2/21 = 2 × 8/21 × 8 = 16/168
  4. Subtract the two like fractions:
    945/168 - 16/168 = 945 - 16/168 = 929/168
  5. In mixed form: 589/168

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