Add 72/9 and 15/80
1st number: 8 0/9, 2nd number: 15/80
72/9 + 15/80 is 131/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 9 × 80 = 720,
72/9 = 72 × 80/9 × 80 = 5760/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
15/80 = 15 × 9/80 × 9 = 135/720 - Add the two like fractions:
5760/720 + 135/720 = 5760 + 135/720 = 5895/720 - 5895/720 simplified gives 131/16
- So, 72/9 + 15/80 = 131/16
In mixed form: 83/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/9+30/80 72/18+15/80 72/9+45/80 72/27+15/80 72/9+75/80 72/45+15/80 72/63+15/80