Add 70/90 and 70/9
1st number: 70/90, 2nd number: 7 7/9
70/90 + 70/9 is 77/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
70/90 = 70 × 1/90 × 1 = 70/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
70/9 = 70 × 10/9 × 10 = 700/90 - Add the two like fractions:
70/90 + 700/90 = 70 + 700/90 = 770/90 - 770/90 simplified gives 77/9
- So, 70/90 + 70/9 = 77/9
In mixed form: 85/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90+70/18 70/90+70/27 70/90+70/45 70/90+70/63