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Add 8/21 and 9/36

8/21 + 9/36 is 53/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 21 × 12 = 252,
    8/21 = 8 × 12/21 × 12 = 96/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    9/36 = 9 × 7/36 × 7 = 63/252
  4. Add the two like fractions:
    96/252 + 63/252 = 96 + 63/252 = 159/252
  5. 159/252 simplified gives 53/84
  6. So, 8/21 + 9/36 = 53/84

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