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Add 12/21 and 9/16

12/21 + 9/16 is 127/112.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 16 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 21 × 16 = 336,
    12/21 = 12 × 16/21 × 16 = 192/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    9/16 = 9 × 21/16 × 21 = 189/336
  4. Add the two like fractions:
    192/336 + 189/336 = 192 + 189/336 = 381/336
  5. 381/336 simplified gives 127/112
  6. So, 12/21 + 9/16 = 127/112
    In mixed form: 115/112

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