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Add 5/42 and 3/18

5/42 + 3/18 is 2/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 42 × 3 = 126,
    5/42 = 5 × 3/42 × 3 = 15/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    3/18 = 3 × 7/18 × 7 = 21/126
  4. Add the two like fractions:
    15/126 + 21/126 = 15 + 21/126 = 36/126
  5. 36/126 simplified gives 2/7
  6. So, 5/42 + 3/18 = 2/7

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