Add 9/18 and 6/8
9/18 + 6/8 is 5/4.
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,
9/18 = 9 × 4/18 × 4 = 36/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
6/8 = 6 × 9/8 × 9 = 54/72 - Add the two like fractions:
36/72 + 54/72 = 36 + 54/72 = 90/72 - 90/72 simplified gives 5/4
- So, 9/18 + 6/8 = 5/4
In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18+12/8 9/36+6/8 9/18+6/16 27/18+6/8 9/18+18/8 9/54+6/8 9/18+6/24 45/18+6/8 9/18+30/8 9/90+6/8 9/18+6/40 63/18+6/8 9/18+42/8 9/18+6/56