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Add 9/36 and 8/21

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

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 21 is 252
  2. For the 1st fraction, since 36 × 7 = 252,
    9/36 = 9 × 7/36 × 7 = 63/252
  3. Likewise, for the 2nd fraction, since 21 × 12 = 252,
    8/21 = 8 × 12/21 × 12 = 96/252
  4. Add the two fractions:
    63/252 + 96/252 = 63 + 96/252 = 159/252
  5. After reducing the fraction, the answer is 53/84

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