Add 3/30 and 7/9
3/30 + 7/9 is 79/90.
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,
3/30 = 3 × 3/30 × 3 = 9/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
7/9 = 7 × 10/9 × 10 = 70/90 - Add the two like fractions:
9/90 + 70/90 = 9 + 70/90 = 79/90 - So, 3/30 + 7/9 = 79/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30+7/9 3/30+14/9 3/60+7/9 3/30+7/18 9/30+7/9 3/30+21/9 3/90+7/9 3/30+7/27 15/30+7/9 3/30+35/9 3/30+7/45 21/30+7/9 3/30+49/9 3/30+7/63