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Add 20/42 and 18/36

20/42 + 18/36 is 41/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 42 × 6 = 252,
    20/42 = 20 × 6/42 × 6 = 120/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    18/36 = 18 × 7/36 × 7 = 126/252
  4. Add the two like fractions:
    120/252 + 126/252 = 120 + 126/252 = 246/252
  5. 246/252 simplified gives 41/42
  6. So, 20/42 + 18/36 = 41/42

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