Add 81/28 and 40/54
1st number: 2 25/28, 2nd number: 40/54
81/28 + 40/54 is 2747/756.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
81/28 = 81 × 27/28 × 27 = 2187/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
40/54 = 40 × 14/54 × 14 = 560/756 - Add the two like fractions:
2187/756 + 560/756 = 2187 + 560/756 = 2747/756 - So, 81/28 + 40/54 = 2747/756
In mixed form: 3479/756
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/28+80/54 81/56+40/54 81/84+40/54