Add 25/45 and 7/18
25/45 + 7/18 is 17/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
25/45 = 25 × 2/45 × 2 = 50/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
7/18 = 7 × 5/18 × 5 = 35/90 - Add the two like fractions:
50/90 + 35/90 = 50 + 35/90 = 85/90 - 85/90 simplified gives 17/18
- So, 25/45 + 7/18 = 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45+7/18 25/45+14/18 25/90+7/18 25/45+7/36 75/45+7/18 25/45+21/18 25/45+7/54 25/45+35/18 25/45+7/90 25/45+49/18