Add 9/18 and 25/15
1st number: 9/18, 2nd number: 1 10/15
9/18 + 25/15 is 13/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
9/18 = 9 × 5/18 × 5 = 45/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
25/15 = 25 × 6/15 × 6 = 150/90 - Add the two like fractions:
45/90 + 150/90 = 45 + 150/90 = 195/90 - 195/90 simplified gives 13/6
- So, 9/18 + 25/15 = 13/6
In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18+50/15 9/36+25/15 9/18+25/30 27/18+25/15 9/18+75/15 9/54+25/15 9/18+25/45 45/18+25/15 9/90+25/15 9/18+25/75 63/18+25/15