Add 30/8 and 6/81
1st number: 3 6/8, 2nd number: 6/81
30/8 + 6/81 is 413/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
30/8 = 30 × 81/8 × 81 = 2430/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
6/81 = 6 × 8/81 × 8 = 48/648 - Add the two like fractions:
2430/648 + 48/648 = 2430 + 48/648 = 2478/648 - 2478/648 simplified gives 413/108
- So, 30/8 + 6/81 = 413/108
In mixed form: 389/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+6/81 30/8+12/81 30/16+6/81 90/8+6/81 30/8+18/81 30/24+6/81 30/8+30/81 30/40+6/81 30/8+42/81 30/56+6/81