Add 30/81 and 18/45
30/81 + 18/45 is 104/135.
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,
30/81 = 30 × 5/81 × 5 = 150/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
18/45 = 18 × 9/45 × 9 = 162/405 - Add the two like fractions:
150/405 + 162/405 = 150 + 162/405 = 312/405 - 312/405 simplified gives 104/135
- So, 30/81 + 18/45 = 104/135
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