Add 5/49 and 84/81
1st number: 5/49, 2nd number: 1 3/81
5/49 + 84/81 is 1507/1323.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 81 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 49 × 81 = 3969,
5/49 = 5 × 81/49 × 81 = 405/3969 - Likewise, for the 2nd fraction, since 81 × 49 = 3969,
84/81 = 84 × 49/81 × 49 = 4116/3969 - Add the two like fractions:
405/3969 + 4116/3969 = 405 + 4116/3969 = 4521/3969 - 4521/3969 simplified gives 1507/1323
- So, 5/49 + 84/81 = 1507/1323
In mixed form: 1184/1323
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/49+84/81 5/98+84/81 15/49+84/81 25/49+84/81 35/49+84/81