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Add 1/21 and 18/54

1/21 + 18/54 is 8/21.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 21 × 18 = 378,
    1/21 = 1 × 18/21 × 18 = 18/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    18/54 = 18 × 7/54 × 7 = 126/378
  4. Add the two like fractions:
    18/378 + 126/378 = 18 + 126/378 = 144/378
  5. 144/378 simplified gives 8/21
  6. So, 1/21 + 18/54 = 8/21

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