Add 2/15 and 21/27
2/15 + 21/27 is 41/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
2/15 = 2 × 9/15 × 9 = 18/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
21/27 = 21 × 5/27 × 5 = 105/135 - Add the two like fractions:
18/135 + 105/135 = 18 + 105/135 = 123/135 - 123/135 simplified gives 41/45
- So, 2/15 + 21/27 = 41/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/15+21/27 2/15+42/27 2/30+21/27 2/15+21/54 6/15+21/27 2/15+63/27 2/45+21/27 2/15+21/81 10/15+21/27 2/75+21/27 14/15+21/27