Add 90/9 and 98/15
1st number: 10 0/9, 2nd number: 6 8/15
90/9 + 98/15 is 248/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
90/9 = 90 × 5/9 × 5 = 450/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
98/15 = 98 × 3/15 × 3 = 294/45 - Add the two like fractions:
450/45 + 294/45 = 450 + 294/45 = 744/45 - 744/45 simplified gives 248/15
- So, 90/9 + 98/15 = 248/15
In mixed form: 168/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+98/15 90/9+98/30 90/27+98/15 90/9+98/45 90/45+98/15 90/9+98/75 90/63+98/15