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Subtract 48/12 from 21/16

1st number: 1 5/16, 2nd number: 4 0/12

21/16 - 48/12 is -43/16.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 12 is 48

    Next, find the equivalent fraction of both fractional numbers with denominator 48
  2. For the 1st fraction, since 16 × 3 = 48,
    21/16 = 21 × 3/16 × 3 = 63/48
  3. Likewise, for the 2nd fraction, since 12 × 4 = 48,
    48/12 = 48 × 4/12 × 4 = 192/48
  4. Subtract the two like fractions:
    63/48 - 192/48 = 63 - 192/48 = -129/48
  5. After reducing the fraction, the answer is -43/16

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