Add 42/5 and 28/9
1st number: 8 2/5, 2nd number: 3 1/9
42/5 + 28/9 is 518/45.
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,
28/9 = 28 × 5/9 × 5 = 140/45 - Add the two like fractions:
378/45 + 140/45 = 378 + 140/45 = 518/45 - So, 42/5 + 28/9 = 518/45
In mixed form: 1123/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+28/9 42/5+56/9 42/10+28/9 42/5+28/18 42/5+84/9 42/15+28/9 42/5+28/27 42/25+28/9 42/5+28/45 42/35+28/9 42/5+28/63