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Subtract 30/16 from 21/8

1st number: 2 5/8, 2nd number: 1 14/16

21/8 - 30/16 is 3/4.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 16
  2. For the 1st fraction, since 8 × 2 = 16,
    21/8 = 21 × 2/8 × 2 = 42/16
  3. Likewise, for the 2nd fraction, since 16 × 1 = 16,
    30/16 = 30 × 1/16 × 1 = 30/16
  4. Subtract the two like fractions:
    42/16 - 30/16 = 42 - 30/16 = 12/16
  5. After reducing the fraction, the answer is 3/4

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