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Add 27/30 and 7/54

27/30 + 7/54 is 139/135.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 30 × 9 = 270,
    27/30 = 27 × 9/30 × 9 = 243/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    7/54 = 7 × 5/54 × 5 = 35/270
  4. Add the two like fractions:
    243/270 + 35/270 = 243 + 35/270 = 278/270
  5. 278/270 simplified gives 139/135
  6. So, 27/30 + 7/54 = 139/135
    In mixed form: 14/135

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