Add 30/81 and 2/8
30/81 + 2/8 is 67/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
30/81 = 30 × 8/81 × 8 = 240/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
2/8 = 2 × 81/8 × 81 = 162/648 - Add the two like fractions:
240/648 + 162/648 = 240 + 162/648 = 402/648 - 402/648 simplified gives 67/108
- So, 30/81 + 2/8 = 67/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/81+2/8 30/81+4/8 30/81+2/16 90/81+2/8 30/81+6/8 30/81+2/24 30/81+10/8 30/81+2/40 30/81+14/8 30/81+2/56