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Add 28/54 and 16/21

28/54 + 16/21 is 242/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 21 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    28/54 = 28 × 7/54 × 7 = 196/378
  3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
    16/21 = 16 × 18/21 × 18 = 288/378
  4. Add the two like fractions:
    196/378 + 288/378 = 196 + 288/378 = 484/378
  5. 484/378 simplified gives 242/189
  6. So, 28/54 + 16/21 = 242/189
    In mixed form: 153/189

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