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Add 9/18 and 8/21

9/18 + 8/21 is 37/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 21 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    9/18 = 9 × 7/18 × 7 = 63/126
  3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
    8/21 = 8 × 6/21 × 6 = 48/126
  4. Add the two like fractions:
    63/126 + 48/126 = 63 + 48/126 = 111/126
  5. 111/126 simplified gives 37/42
  6. So, 9/18 + 8/21 = 37/42

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