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Add 4/7 and 18/54

4/7 + 18/54 is 19/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 7 × 54 = 378,
    4/7 = 4 × 54/7 × 54 = 216/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    18/54 = 18 × 7/54 × 7 = 126/378
  4. Add the two like fractions:
    216/378 + 126/378 = 216 + 126/378 = 342/378
  5. 342/378 simplified gives 19/21
  6. So, 4/7 + 18/54 = 19/21

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