Add 90/30 and 70/9
1st number: 3 0/30, 2nd number: 7 7/9
90/30 + 70/9 is 97/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
90/30 = 90 × 3/30 × 3 = 270/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
70/9 = 70 × 10/9 × 10 = 700/90 - Add the two like fractions:
270/90 + 700/90 = 270 + 700/90 = 970/90 - 970/90 simplified gives 97/9
- So, 90/30 + 70/9 = 97/9
In mixed form: 107/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/60+70/9 90/30+70/18 90/30+70/27 90/30+70/45 90/30+70/63