Add 42/9 and 3/5
1st number: 4 6/9, 2nd number: 3/5
42/9 + 3/5 is 79/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
42/9 = 42 × 5/9 × 5 = 210/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
3/5 = 3 × 9/5 × 9 = 27/45 - Add the two like fractions:
210/45 + 27/45 = 210 + 27/45 = 237/45 - 237/45 simplified gives 79/15
- So, 42/9 + 3/5 = 79/15
In mixed form: 54/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9+3/5 42/9+6/5 42/18+3/5 42/9+3/10 42/9+9/5 42/27+3/5 42/9+3/15 42/9+15/5 42/45+3/5 42/9+3/25 42/9+21/5 42/63+3/5 42/9+3/35