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Add 4/80 and 18/81

4/80 + 18/81 is 49/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 81 is 6480

    Next, find the equivalent fraction of both fractional numbers with denominator 6480
  2. For the 1st fraction, since 80 × 81 = 6480,
    4/80 = 4 × 81/80 × 81 = 324/6480
  3. Likewise, for the 2nd fraction, since 81 × 80 = 6480,
    18/81 = 18 × 80/81 × 80 = 1440/6480
  4. Add the two like fractions:
    324/6480 + 1440/6480 = 324 + 1440/6480 = 1764/6480
  5. 1764/6480 simplified gives 49/180
  6. So, 4/80 + 18/81 = 49/180

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