Add 54/45 and 1/81
1st number: 1 9/45, 2nd number: 1/81
54/45 + 1/81 is 491/405.
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,
54/45 = 54 × 9/45 × 9 = 486/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
1/81 = 1 × 5/81 × 5 = 5/405 - Add the two like fractions:
486/405 + 5/405 = 486 + 5/405 = 491/405 - So, 54/45 + 1/81 = 491/405
In mixed form: 186/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45+2/81 54/90+1/81 54/45+3/81 54/45+5/81 54/45+7/81