Add 70/27 and 81/28
1st number: 2 16/27, 2nd number: 2 25/28
70/27 + 81/28 is 4147/756.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
70/27 = 70 × 28/27 × 28 = 1960/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
81/28 = 81 × 27/28 × 27 = 2187/756 - Add the two like fractions:
1960/756 + 2187/756 = 1960 + 2187/756 = 4147/756 - So, 70/27 + 81/28 = 4147/756
In mixed form: 5367/756
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/54+81/28 70/27+81/56 70/81+81/28 70/27+81/84