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Add 3/27 and 2/21

3/27 + 2/21 is 13/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 21 is 189

    Next, find the equivalent fraction of both fractional numbers with denominator 189
  2. For the 1st fraction, since 27 × 7 = 189,
    3/27 = 3 × 7/27 × 7 = 21/189
  3. Likewise, for the 2nd fraction, since 21 × 9 = 189,
    2/21 = 2 × 9/21 × 9 = 18/189
  4. Add the two like fractions:
    21/189 + 18/189 = 21 + 18/189 = 39/189
  5. 39/189 simplified gives 13/63
  6. So, 3/27 + 2/21 = 13/63

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