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Add 45/40 and 1/81

1st number: 1 5/40, 2nd number: 1/81

45/40 + 1/81 is 737/648.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 81 is 3240

    Next, find the equivalent fraction of both fractional numbers with denominator 3240
  2. For the 1st fraction, since 40 × 81 = 3240,
    45/40 = 45 × 81/40 × 81 = 3645/3240
  3. Likewise, for the 2nd fraction, since 81 × 40 = 3240,
    1/81 = 1 × 40/81 × 40 = 40/3240
  4. Add the two like fractions:
    3645/3240 + 40/3240 = 3645 + 40/3240 = 3685/3240
  5. 3685/3240 simplified gives 737/648
  6. So, 45/40 + 1/81 = 737/648
    In mixed form: 189/648

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