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Add 20/42 and 3/18

20/42 + 3/18 is 9/14.

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,
    20/42 = 20 × 3/42 × 3 = 60/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    3/18 = 3 × 7/18 × 7 = 21/126
  4. Add the two like fractions:
    60/126 + 21/126 = 60 + 21/126 = 81/126
  5. 81/126 simplified gives 9/14
  6. So, 20/42 + 3/18 = 9/14

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