Add 8/16 and 30/81
8/16 + 30/81 is 47/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
8/16 = 8 × 81/16 × 81 = 648/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
30/81 = 30 × 16/81 × 16 = 480/1296 - Add the two like fractions:
648/1296 + 480/1296 = 648 + 480/1296 = 1128/1296 - 1128/1296 simplified gives 47/54
- So, 8/16 + 30/81 = 47/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/16+60/81 8/32+30/81 24/16+30/81 8/16+90/81 8/48+30/81 40/16+30/81 8/80+30/81 56/16+30/81