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Add 12/15 and 40/54

12/15 + 40/54 is 208/135.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 15 × 18 = 270,
    12/15 = 12 × 18/15 × 18 = 216/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    40/54 = 40 × 5/54 × 5 = 200/270
  4. Add the two like fractions:
    216/270 + 200/270 = 216 + 200/270 = 416/270
  5. 416/270 simplified gives 208/135
  6. So, 12/15 + 40/54 = 208/135
    In mixed form: 173/135

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