Add 15/18 and 4/8
15/18 + 4/8 is 4/3.
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,
4/8 = 4 × 9/8 × 9 = 36/72 - Add the two like fractions:
60/72 + 36/72 = 60 + 36/72 = 96/72 - 96/72 simplified gives 4/3
- So, 15/18 + 4/8 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+4/8 15/36+4/8 15/18+4/16 45/18+4/8 15/18+12/8 15/54+4/8 15/18+4/24 75/18+4/8 15/18+20/8 15/90+4/8 15/18+4/40 15/18+28/8 15/18+4/56