Add 80/10 and 7/9
1st number: 8 0/10, 2nd number: 7/9
80/10 + 7/9 is 79/9.
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,
80/10 = 80 × 9/10 × 9 = 720/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
7/9 = 7 × 10/9 × 10 = 70/90 - Add the two like fractions:
720/90 + 70/90 = 720 + 70/90 = 790/90 - 790/90 simplified gives 79/9
- So, 80/10 + 7/9 = 79/9
In mixed form: 87/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10+14/9 80/20+7/9 80/10+7/18 80/10+21/9 80/30+7/9 80/10+7/27 80/10+35/9 80/50+7/9 80/10+7/45 80/10+49/9 80/70+7/9 80/10+7/63