Add 5/45 and 20/81
5/45 + 20/81 is 29/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
5/45 = 5 × 9/45 × 9 = 45/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
20/81 = 20 × 5/81 × 5 = 100/405 - Add the two like fractions:
45/405 + 100/405 = 45 + 100/405 = 145/405 - 145/405 simplified gives 29/81
- So, 5/45 + 20/81 = 29/81
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