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Add 40/80 and 15/54

40/80 + 15/54 is 7/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 54 is 2160

    Next, find the equivalent fraction of both fractional numbers with denominator 2160
  2. For the 1st fraction, since 80 × 27 = 2160,
    40/80 = 40 × 27/80 × 27 = 1080/2160
  3. Likewise, for the 2nd fraction, since 54 × 40 = 2160,
    15/54 = 15 × 40/54 × 40 = 600/2160
  4. Add the two like fractions:
    1080/2160 + 600/2160 = 1080 + 600/2160 = 1680/2160
  5. 1680/2160 simplified gives 7/9
  6. So, 40/80 + 15/54 = 7/9

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