Add 81/8 and 2/9
1st number: 10 1/8, 2nd number: 2/9
81/8 + 2/9 is 745/72.
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,
81/8 = 81 × 9/8 × 9 = 729/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
2/9 = 2 × 8/9 × 8 = 16/72 - Add the two like fractions:
729/72 + 16/72 = 729 + 16/72 = 745/72 - So, 81/8 + 2/9 = 745/72
In mixed form: 1025/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/8+4/9 81/16+2/9 81/8+2/18 81/8+6/9 81/24+2/9 81/8+2/27 81/8+10/9 81/40+2/9 81/8+2/45 81/8+14/9 81/56+2/9 81/8+2/63