Add 2/5 and 25/18
1st number: 2/5, 2nd number: 1 7/18
2/5 + 25/18 is 161/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
2/5 = 2 × 18/5 × 18 = 36/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
25/18 = 25 × 5/18 × 5 = 125/90 - Add the two like fractions:
36/90 + 125/90 = 36 + 125/90 = 161/90 - So, 2/5 + 25/18 = 161/90
In mixed form: 171/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/5+25/18 2/5+50/18 2/10+25/18 2/5+25/36 6/5+25/18 2/5+75/18 2/15+25/18 2/5+25/54 10/5+25/18 2/25+25/18 2/5+25/90 14/5+25/18 2/35+25/18