Add 5/30 and 8/81
5/30 + 8/81 is 43/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
5/30 = 5 × 27/30 × 27 = 135/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
8/81 = 8 × 10/81 × 10 = 80/810 - Add the two like fractions:
135/810 + 80/810 = 135 + 80/810 = 215/810 - 215/810 simplified gives 43/162
- So, 5/30 + 8/81 = 43/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30+8/81 5/30+16/81 5/60+8/81 15/30+8/81 5/30+24/81 5/90+8/81 25/30+8/81 5/30+40/81 35/30+8/81 5/30+56/81