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Add 12/21 and 9/8

1st number: 12/21, 2nd number: 1 1/8

12/21 + 9/8 is 95/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 21 × 8 = 168,
    12/21 = 12 × 8/21 × 8 = 96/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    9/8 = 9 × 21/8 × 21 = 189/168
  4. Add the two like fractions:
    96/168 + 189/168 = 96 + 189/168 = 285/168
  5. 285/168 simplified gives 95/56
  6. So, 12/21 + 9/8 = 95/56
    In mixed form: 139/56

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