Add 15/27 and 72/9
1st number: 15/27, 2nd number: 8 0/9
15/27 + 72/9 is 77/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 9 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 27 × 1 = 27,
15/27 = 15 × 1/27 × 1 = 15/27 - Likewise, for the 2nd fraction, since 9 × 3 = 27,
72/9 = 72 × 3/9 × 3 = 216/27 - Add the two like fractions:
15/27 + 216/27 = 15 + 216/27 = 231/27 - 231/27 simplified gives 77/9
- So, 15/27 + 72/9 = 77/9
In mixed form: 85/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/27+72/9 15/54+72/9 15/27+72/18 45/27+72/9 15/81+72/9 15/27+72/27 75/27+72/9 15/27+72/45 15/27+72/63