Add 12/81 and 84/45
1st number: 12/81, 2nd number: 1 39/45
12/81 + 84/45 is 272/135.
Steps for adding fractions
- 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 - For the 1st fraction, since 81 × 5 = 405,
12/81 = 12 × 5/81 × 5 = 60/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
84/45 = 84 × 9/45 × 9 = 756/405 - Add the two like fractions:
60/405 + 756/405 = 60 + 756/405 = 816/405 - 816/405 simplified gives 272/135
- So, 12/81 + 84/45 = 272/135
In mixed form: 22/135
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