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Add 12/56 and 9/21

12/56 + 9/21 is 9/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 21 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 56 × 3 = 168,
    12/56 = 12 × 3/56 × 3 = 36/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    9/21 = 9 × 8/21 × 8 = 72/168
  4. Add the two like fractions:
    36/168 + 72/168 = 36 + 72/168 = 108/168
  5. 108/168 simplified gives 9/14
  6. So, 12/56 + 9/21 = 9/14

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