Add 30/5 and 8/81
1st number: 6 0/5, 2nd number: 8/81
30/5 + 8/81 is 494/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
30/5 = 30 × 81/5 × 81 = 2430/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
8/81 = 8 × 5/81 × 5 = 40/405 - Add the two like fractions:
2430/405 + 40/405 = 2430 + 40/405 = 2470/405 - 2470/405 simplified gives 494/81
- So, 30/5 + 8/81 = 494/81
In mixed form: 68/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/5+8/81 30/5+16/81 30/10+8/81 90/5+8/81 30/5+24/81 30/15+8/81 30/5+40/81 30/25+8/81 30/5+56/81 30/35+8/81