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Add 2/21 and 21/36

2/21 + 21/36 is 19/28.

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,
    2/21 = 2 × 12/21 × 12 = 24/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    21/36 = 21 × 7/36 × 7 = 147/252
  4. Add the two like fractions:
    24/252 + 147/252 = 24 + 147/252 = 171/252
  5. 171/252 simplified gives 19/28
  6. So, 2/21 + 21/36 = 19/28

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