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Subtract 21/16 from 2/3

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

2/3 - 21/16 is -31/48.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 16 is 48

    Next, find the equivalent fraction of both fractional numbers with denominator 48
  2. For the 1st fraction, since 3 × 16 = 48,
    2/3 = 2 × 16/3 × 16 = 32/48
  3. Likewise, for the 2nd fraction, since 16 × 3 = 48,
    21/16 = 21 × 3/16 × 3 = 63/48
  4. Subtract the two like fractions:
    32/48 - 63/48 = 32 - 63/48 = -31/48

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