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Add 18/36 and 8/21

18/36 + 8/21 is 37/42.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 36 × 7 = 252,
    18/36 = 18 × 7/36 × 7 = 126/252
  3. Likewise, for the 2nd fraction, since 21 × 12 = 252,
    8/21 = 8 × 12/21 × 12 = 96/252
  4. Add the two like fractions:
    126/252 + 96/252 = 126 + 96/252 = 222/252
  5. 222/252 simplified gives 37/42
  6. So, 18/36 + 8/21 = 37/42

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