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Add 45/81 and 9/10

45/81 + 9/10 is 131/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 10 is 810

    Next, find the equivalent fraction of both fractional numbers with denominator 810
  2. For the 1st fraction, since 81 × 10 = 810,
    45/81 = 45 × 10/81 × 10 = 450/810
  3. Likewise, for the 2nd fraction, since 10 × 81 = 810,
    9/10 = 9 × 81/10 × 81 = 729/810
  4. Add the two like fractions:
    450/810 + 729/810 = 450 + 729/810 = 1179/810
  5. 1179/810 simplified gives 131/90
  6. So, 45/81 + 9/10 = 131/90
    In mixed form: 141/90

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