Add 15/10 and 72/9
1st number: 1 5/10, 2nd number: 8 0/9
15/10 + 72/9 is 19/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
15/10 = 15 × 9/10 × 9 = 135/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
72/9 = 72 × 10/9 × 10 = 720/90 - Add the two like fractions:
135/90 + 720/90 = 135 + 720/90 = 855/90 - 855/90 simplified gives 19/2
- So, 15/10 + 72/9 = 19/2
In mixed form: 91/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10+72/9 15/20+72/9 15/10+72/18 45/10+72/9 15/30+72/9 15/10+72/27 75/10+72/9 15/50+72/9 15/10+72/45 15/70+72/9 15/10+72/63