Add 3/81 and 3/12
3/81 + 3/12 is 31/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
3/81 = 3 × 4/81 × 4 = 12/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
3/12 = 3 × 27/12 × 27 = 81/324 - Add the two like fractions:
12/324 + 81/324 = 12 + 81/324 = 93/324 - 93/324 simplified gives 31/108
- So, 3/81 + 3/12 = 31/108
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