Add 5/8 and 3/81
5/8 + 3/81 is 143/216.
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,
5/8 = 5 × 81/8 × 81 = 405/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
3/81 = 3 × 8/81 × 8 = 24/648 - Add the two like fractions:
405/648 + 24/648 = 405 + 24/648 = 429/648 - 429/648 simplified gives 143/216
- So, 5/8 + 3/81 = 143/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/8+3/81 5/8+6/81 5/16+3/81 15/8+3/81 5/8+9/81 5/24+3/81 25/8+3/81 5/8+15/81 5/40+3/81 35/8+3/81 5/8+21/81 5/56+3/81