Add 81/8 and 7/12
1st number: 10 1/8, 2nd number: 7/12
81/8 + 7/12 is 257/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
81/8 = 81 × 3/8 × 3 = 243/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
7/12 = 7 × 2/12 × 2 = 14/24 - Add the two like fractions:
243/24 + 14/24 = 243 + 14/24 = 257/24 - So, 81/8 + 7/12 = 257/24
In mixed form: 1017/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/8+14/12 81/16+7/12 81/8+7/24 81/8+21/12 81/24+7/12 81/8+7/36 81/8+35/12 81/40+7/12 81/8+7/60 81/8+49/12 81/56+7/12 81/8+7/84