Add 70/28 and 7/81
1st number: 2 14/28, 2nd number: 7/81
70/28 + 7/81 is 419/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 28 × 81 = 2268,
70/28 = 70 × 81/28 × 81 = 5670/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
7/81 = 7 × 28/81 × 28 = 196/2268 - Add the two like fractions:
5670/2268 + 196/2268 = 5670 + 196/2268 = 5866/2268 - 5866/2268 simplified gives 419/162
- So, 70/28 + 7/81 = 419/162
In mixed form: 295/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/28+14/81 70/56+7/81 70/28+21/81 70/84+7/81 70/28+35/81 70/28+49/81