Add 70/9 and 80/90
1st number: 7 7/9, 2nd number: 80/90
70/9 + 80/90 is 26/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
70/9 = 70 × 10/9 × 10 = 700/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
80/90 = 80 × 1/90 × 1 = 80/90 - Add the two like fractions:
700/90 + 80/90 = 700 + 80/90 = 780/90 - 780/90 simplified gives 26/3
- So, 70/9 + 80/90 = 26/3
In mixed form: 82/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+80/90 70/27+80/90 70/45+80/90 70/63+80/90