Add 28/15 and 32/18
1st number: 1 13/15, 2nd number: 1 14/18
28/15 + 32/18 is 164/45.
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,
28/15 = 28 × 6/15 × 6 = 168/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
32/18 = 32 × 5/18 × 5 = 160/90 - Add the two like fractions:
168/90 + 160/90 = 168 + 160/90 = 328/90 - 328/90 simplified gives 164/45
- So, 28/15 + 32/18 = 164/45
In mixed form: 329/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+32/18 28/15+64/18 28/30+32/18 28/15+32/36 84/15+32/18 28/15+96/18 28/45+32/18 28/15+32/54 28/75+32/18 28/15+32/90