Add 2/5 and 18/81
2/5 + 18/81 is 28/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
2/5 = 2 × 81/5 × 81 = 162/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
18/81 = 18 × 5/81 × 5 = 90/405 - Add the two like fractions:
162/405 + 90/405 = 162 + 90/405 = 252/405 - 252/405 simplified gives 28/45
- So, 2/5 + 18/81 = 28/45
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