Add 7/18 and 7/30
7/18 + 7/30 is 28/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
7/18 = 7 × 5/18 × 5 = 35/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
7/30 = 7 × 3/30 × 3 = 21/90 - Add the two like fractions:
35/90 + 21/90 = 35 + 21/90 = 56/90 - 56/90 simplified gives 28/45
- So, 7/18 + 7/30 = 28/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/18+7/30 7/18+14/30 7/36+7/30 7/18+7/60 21/18+7/30 7/18+21/30 7/54+7/30 7/18+7/90 35/18+7/30 7/18+35/30 7/90+7/30 49/18+7/30 7/18+49/30