Add 1/18 and 7/45
1/18 + 7/45 is 19/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
1/18 = 1 × 5/18 × 5 = 5/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
7/45 = 7 × 2/45 × 2 = 14/90 - Add the two like fractions:
5/90 + 14/90 = 5 + 14/90 = 19/90 - So, 1/18 + 7/45 = 19/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/18+7/45 1/18+14/45 1/36+7/45 1/18+7/90 3/18+7/45 1/18+21/45 1/54+7/45 5/18+7/45 1/18+35/45 1/90+7/45 7/18+7/45 1/18+49/45