Add 7/15 and 45/18
1st number: 7/15, 2nd number: 2 9/18
7/15 + 45/18 is 89/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
7/15 = 7 × 6/15 × 6 = 42/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
45/18 = 45 × 5/18 × 5 = 225/90 - Add the two like fractions:
42/90 + 225/90 = 42 + 225/90 = 267/90 - 267/90 simplified gives 89/30
- So, 7/15 + 45/18 = 89/30
In mixed form: 229/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+45/18 7/15+90/18 7/30+45/18 7/15+45/36 21/15+45/18 7/45+45/18 7/15+45/54 35/15+45/18 7/75+45/18 7/15+45/90 49/15+45/18