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Add 10/80 and 7/81

10/80 + 7/81 is 137/648.

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,
    10/80 = 10 × 81/80 × 81 = 810/6480
  3. Likewise, for the 2nd fraction, since 81 × 80 = 6480,
    7/81 = 7 × 80/81 × 80 = 560/6480
  4. Add the two like fractions:
    810/6480 + 560/6480 = 810 + 560/6480 = 1370/6480
  5. 1370/6480 simplified gives 137/648
  6. So, 10/80 + 7/81 = 137/648

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