Add 6/27 and 21/15
1st number: 6/27, 2nd number: 1 6/15
6/27 + 21/15 is 73/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 15 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
6/27 = 6 × 5/27 × 5 = 30/135 - Likewise, for the 2nd fraction, since 15 × 9 = 135,
21/15 = 21 × 9/15 × 9 = 189/135 - Add the two like fractions:
30/135 + 189/135 = 30 + 189/135 = 219/135 - 219/135 simplified gives 73/45
- So, 6/27 + 21/15 = 73/45
In mixed form: 128/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/27+21/15 6/27+42/15 6/54+21/15 6/27+21/30 18/27+21/15 6/27+63/15 6/81+21/15 6/27+21/45 30/27+21/15 6/27+21/75 42/27+21/15