Add 14/5 and 84/81
1st number: 2 4/5, 2nd number: 1 3/81
14/5 + 84/81 is 518/135.
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,
14/5 = 14 × 81/5 × 81 = 1134/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
84/81 = 84 × 5/81 × 5 = 420/405 - Add the two like fractions:
1134/405 + 420/405 = 1134 + 420/405 = 1554/405 - 1554/405 simplified gives 518/135
- So, 14/5 + 84/81 = 518/135
In mixed form: 3113/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/5+84/81 14/10+84/81 42/5+84/81 14/15+84/81 70/5+84/81 14/25+84/81 98/5+84/81 14/35+84/81