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Add 4/80 and 45/81

4/80 + 45/81 is 109/180.

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,
    45/81 = 45 × 80/81 × 80 = 3600/6480
  4. Add the two like fractions:
    324/6480 + 3600/6480 = 324 + 3600/6480 = 3924/6480
  5. 3924/6480 simplified gives 109/180
  6. So, 4/80 + 45/81 = 109/180

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