Add 56/45 and 4/81
1st number: 1 11/45, 2nd number: 4/81
56/45 + 4/81 is 524/405.
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,
56/45 = 56 × 9/45 × 9 = 504/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
4/81 = 4 × 5/81 × 5 = 20/405 - Add the two like fractions:
504/405 + 20/405 = 504 + 20/405 = 524/405 - So, 56/45 + 4/81 = 524/405
In mixed form: 1119/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+8/81 56/90+4/81 56/45+12/81 56/45+20/81 56/45+28/81