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Subtract 3/8 from 21/16

1st number: 1 5/16, 2nd number: 3/8

21/16 - 3/8 is 15/16.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 8 is 16

    Next, find the equivalent fraction of both fractional numbers with denominator 16
  2. For the 1st fraction, since 16 × 1 = 16,
    21/16 = 21 × 1/16 × 1 = 21/16
  3. Likewise, for the 2nd fraction, since 8 × 2 = 16,
    3/8 = 3 × 2/8 × 2 = 6/16
  4. Subtract the two like fractions:
    21/16 - 6/16 = 21 - 6/16 = 15/16

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