Add 42/5 and 7/9
1st number: 8 2/5, 2nd number: 7/9
42/5 + 7/9 is 413/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
42/5 = 42 × 9/5 × 9 = 378/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
7/9 = 7 × 5/9 × 5 = 35/45 - Add the two like fractions:
378/45 + 35/45 = 378 + 35/45 = 413/45 - So, 42/5 + 7/9 = 413/45
In mixed form: 98/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+7/9 42/5+14/9 42/10+7/9 42/5+7/18 42/5+21/9 42/15+7/9 42/5+7/27 42/5+35/9 42/25+7/9 42/5+7/45 42/5+49/9 42/35+7/9 42/5+7/63