Add 18/9 and 63/8
1st number: 2 0/9, 2nd number: 7 7/8
18/9 + 63/8 is 79/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
18/9 = 18 × 8/9 × 8 = 144/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
63/8 = 63 × 9/8 × 9 = 567/72 - Add the two like fractions:
144/72 + 567/72 = 144 + 567/72 = 711/72 - 711/72 simplified gives 79/8
- So, 18/9 + 63/8 = 79/8
In mixed form: 97/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9+63/8 18/9+63/16 54/9+63/8 18/27+63/8 18/9+63/24 90/9+63/8 18/45+63/8 18/9+63/40 18/63+63/8 18/9+63/56