Add 9/5 and 84/81
1st number: 1 4/5, 2nd number: 1 3/81
9/5 + 84/81 is 383/135.
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,
9/5 = 9 × 81/5 × 81 = 729/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
84/81 = 84 × 5/81 × 5 = 420/405 - Add the two like fractions:
729/405 + 420/405 = 729 + 420/405 = 1149/405 - 1149/405 simplified gives 383/135
- So, 9/5 + 84/81 = 383/135
In mixed form: 2113/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/5+84/81 9/10+84/81 27/5+84/81 9/15+84/81 45/5+84/81 9/25+84/81 63/5+84/81 9/35+84/81