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Add 6/81 and 42/45

6/81 + 42/45 is 136/135.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 45 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 81 × 5 = 405,
    6/81 = 6 × 5/81 × 5 = 30/405
  3. Likewise, for the 2nd fraction, since 45 × 9 = 405,
    42/45 = 42 × 9/45 × 9 = 378/405
  4. Add the two like fractions:
    30/405 + 378/405 = 30 + 378/405 = 408/405
  5. 408/405 simplified gives 136/135
  6. So, 6/81 + 42/45 = 136/135
    In mixed form: 11/135

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