Add 54/81 and 20/45
54/81 + 20/45 is 10/9.
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,
54/81 = 54 × 5/81 × 5 = 270/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
20/45 = 20 × 9/45 × 9 = 180/405 - Add the two like fractions:
270/405 + 180/405 = 270 + 180/405 = 450/405 - 450/405 simplified gives 10/9
- So, 54/81 + 20/45 = 10/9
In mixed form: 11/9
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