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Add 4/18 and 8/21

4/18 + 8/21 is 38/63.

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,
    4/18 = 4 × 7/18 × 7 = 28/126
  3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
    8/21 = 8 × 6/21 × 6 = 48/126
  4. Add the two like fractions:
    28/126 + 48/126 = 28 + 48/126 = 76/126
  5. 76/126 simplified gives 38/63
  6. So, 4/18 + 8/21 = 38/63

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