Add 5/81 and 70/49
1st number: 5/81, 2nd number: 1 21/49
5/81 + 70/49 is 845/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 49 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 81 × 49 = 3969,
5/81 = 5 × 49/81 × 49 = 245/3969 - Likewise, for the 2nd fraction, since 49 × 81 = 3969,
70/49 = 70 × 81/49 × 81 = 5670/3969 - Add the two like fractions:
245/3969 + 5670/3969 = 245 + 5670/3969 = 5915/3969 - 5915/3969 simplified gives 845/567
- So, 5/81 + 70/49 = 845/567
In mixed form: 1278/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/81+70/49 5/81+70/98 15/81+70/49 25/81+70/49 35/81+70/49