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Add 3/18 and 4/7

3/18 + 4/7 is 31/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 7 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    3/18 = 3 × 7/18 × 7 = 21/126
  3. Likewise, for the 2nd fraction, since 7 × 18 = 126,
    4/7 = 4 × 18/7 × 18 = 72/126
  4. Add the two like fractions:
    21/126 + 72/126 = 21 + 72/126 = 93/126
  5. 93/126 simplified gives 31/42
  6. So, 3/18 + 4/7 = 31/42

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