Add 90/3 and 15/8
1st number: 30 0/3, 2nd number: 1 7/8
90/3 + 15/8 is 255/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 3 × 8 = 24,
90/3 = 90 × 8/3 × 8 = 720/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
15/8 = 15 × 3/8 × 3 = 45/24 - Add the two like fractions:
720/24 + 45/24 = 720 + 45/24 = 765/24 - 765/24 simplified gives 255/8
- So, 90/3 + 15/8 = 255/8
In mixed form: 317/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3+30/8 90/6+15/8 90/3+15/16 90/3+45/8 90/9+15/8 90/3+15/24 90/3+75/8 90/15+15/8 90/3+15/40 90/21+15/8 90/3+15/56