Add 18/81 and 8/45
18/81 + 8/45 is 2/5.
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,
18/81 = 18 × 5/81 × 5 = 90/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
8/45 = 8 × 9/45 × 9 = 72/405 - Add the two like fractions:
90/405 + 72/405 = 90 + 72/405 = 162/405 - 162/405 simplified gives 2/5
- So, 18/81 + 8/45 = 2/5
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