Add 10/9 and 63/80
1st number: 1 1/9, 2nd number: 63/80
10/9 + 63/80 is 1367/720.
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,
10/9 = 10 × 80/9 × 80 = 800/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
63/80 = 63 × 9/80 × 9 = 567/720 - Add the two like fractions:
800/720 + 567/720 = 800 + 567/720 = 1367/720 - So, 10/9 + 63/80 = 1367/720
In mixed form: 1647/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/9+63/80 10/18+63/80 30/9+63/80 10/27+63/80 50/9+63/80 10/45+63/80 70/9+63/80 10/63+63/80