Add 28/7 and 35/81
1st number: 4 0/7, 2nd number: 35/81
28/7 + 35/81 is 359/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
28/7 = 28 × 81/7 × 81 = 2268/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
35/81 = 35 × 7/81 × 7 = 245/567 - Add the two like fractions:
2268/567 + 245/567 = 2268 + 245/567 = 2513/567 - 2513/567 simplified gives 359/81
- So, 28/7 + 35/81 = 359/81
In mixed form: 435/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7+35/81 28/7+70/81 28/14+35/81 84/7+35/81 28/21+35/81 28/35+35/81 28/49+35/81