Add 15/18 and 16/8
1st number: 15/18, 2nd number: 2 0/8
15/18 + 16/8 is 17/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
15/18 = 15 × 4/18 × 4 = 60/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
16/8 = 16 × 9/8 × 9 = 144/72 - Add the two like fractions:
60/72 + 144/72 = 60 + 144/72 = 204/72 - 204/72 simplified gives 17/6
- So, 15/18 + 16/8 = 17/6
In mixed form: 25/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+16/8 15/18+32/8 15/36+16/8 45/18+16/8 15/18+48/8 15/54+16/8 15/18+16/24 75/18+16/8 15/18+80/8 15/90+16/8 15/18+16/40 15/18+16/56