Add 27/28 and 15/27
27/28 + 15/27 is 383/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
27/28 = 27 × 27/28 × 27 = 729/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
15/27 = 15 × 28/27 × 28 = 420/756 - Add the two like fractions:
729/756 + 420/756 = 729 + 420/756 = 1149/756 - 1149/756 simplified gives 383/252
- So, 27/28 + 15/27 = 383/252
In mixed form: 1131/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28+15/27 27/28+30/27 27/56+15/27 27/28+15/54 81/28+15/27 27/28+45/27 27/84+15/27 27/28+15/81 27/28+75/27