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Add 20/21 and 2/36

20/21 + 2/36 is 127/126.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 21 × 12 = 252,
    20/21 = 20 × 12/21 × 12 = 240/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    2/36 = 2 × 7/36 × 7 = 14/252
  4. Add the two like fractions:
    240/252 + 14/252 = 240 + 14/252 = 254/252
  5. 254/252 simplified gives 127/126
  6. So, 20/21 + 2/36 = 127/126
    In mixed form: 11/126

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