Add 18/15 and 98/8
1st number: 1 3/15, 2nd number: 12 2/8
18/15 + 98/8 is 269/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
18/15 = 18 × 8/15 × 8 = 144/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
98/8 = 98 × 15/8 × 15 = 1470/120 - Add the two like fractions:
144/120 + 1470/120 = 144 + 1470/120 = 1614/120 - 1614/120 simplified gives 269/20
- So, 18/15 + 98/8 = 269/20
In mixed form: 139/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+98/8 18/30+98/8 18/15+98/16 54/15+98/8 18/45+98/8 18/15+98/24 90/15+98/8 18/75+98/8 18/15+98/40 18/15+98/56