Add 2/81 and 4/18
2/81 + 4/18 is 20/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 18 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 81 × 2 = 162,
2/81 = 2 × 2/81 × 2 = 4/162 - Likewise, for the 2nd fraction, since 18 × 9 = 162,
4/18 = 4 × 9/18 × 9 = 36/162 - Add the two like fractions:
4/162 + 36/162 = 4 + 36/162 = 40/162 - 40/162 simplified gives 20/81
- So, 2/81 + 4/18 = 20/81
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