Add 4/8 and 7/9
4/8 + 7/9 is 23/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
4/8 = 4 × 9/8 × 9 = 36/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
7/9 = 7 × 8/9 × 8 = 56/72 - Add the two like fractions:
36/72 + 56/72 = 36 + 56/72 = 92/72 - 92/72 simplified gives 23/18
- So, 4/8 + 7/9 = 23/18
In mixed form: 15/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8+14/9 4/16+7/9 4/8+7/18 12/8+7/9 4/8+21/9 4/24+7/9 4/8+7/27 20/8+7/9 4/8+35/9 4/40+7/9 4/8+7/45 28/8+7/9 4/8+49/9 4/56+7/9 4/8+7/63