Add 9/12 and 45/81
9/12 + 45/81 is 47/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
9/12 = 9 × 27/12 × 27 = 243/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
45/81 = 45 × 4/81 × 4 = 180/324 - Add the two like fractions:
243/324 + 180/324 = 243 + 180/324 = 423/324 - 423/324 simplified gives 47/36
- So, 9/12 + 45/81 = 47/36
In mixed form: 111/36
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