Add 42/5 and 35/81
1st number: 8 2/5, 2nd number: 35/81
42/5 + 35/81 is 3577/405.
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,
42/5 = 42 × 81/5 × 81 = 3402/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
35/81 = 35 × 5/81 × 5 = 175/405 - Add the two like fractions:
3402/405 + 175/405 = 3402 + 175/405 = 3577/405 - So, 42/5 + 35/81 = 3577/405
In mixed form: 8337/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+35/81 42/5+70/81 42/10+35/81 42/15+35/81 42/25+35/81 42/35+35/81