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Add 8/21 and 28/27

1st number: 8/21, 2nd number: 1 1/27

8/21 + 28/27 is 268/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 27 is 189
  2. For the 1st fraction, since 21 × 9 = 189,
    8/21 = 8 × 9/21 × 9 = 72/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    28/27 = 28 × 7/27 × 7 = 196/189
  4. Add the two fractions:
    72/189 + 196/189 = 72 + 196/189 = 268/189
  5. In mixed form: 179/189

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