Add 28/5 and 36/81
1st number: 5 3/5, 2nd number: 36/81
28/5 + 36/81 is 272/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
28/5 = 28 × 81/5 × 81 = 2268/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
36/81 = 36 × 5/81 × 5 = 180/405 - Add the two like fractions:
2268/405 + 180/405 = 2268 + 180/405 = 2448/405 - 2448/405 simplified gives 272/45
- So, 28/5 + 36/81 = 272/45
In mixed form: 62/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/5+36/81 28/5+72/81 28/10+36/81 84/5+36/81 28/15+36/81 28/25+36/81 28/35+36/81