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Add 21/42 and 5/36

21/42 + 5/36 is 23/36.

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,
    21/42 = 21 × 6/42 × 6 = 126/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    5/36 = 5 × 7/36 × 7 = 35/252
  4. Add the two like fractions:
    126/252 + 35/252 = 126 + 35/252 = 161/252
  5. 161/252 simplified gives 23/36
  6. So, 21/42 + 5/36 = 23/36

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