Add 4/12 and 45/81
4/12 + 45/81 is 8/9.
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,
4/12 = 4 × 27/12 × 27 = 108/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
45/81 = 45 × 4/81 × 4 = 180/324 - Add the two like fractions:
108/324 + 180/324 = 108 + 180/324 = 288/324 - 288/324 simplified gives 8/9
- So, 4/12 + 45/81 = 8/9
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