Add 42/15 and 2/9
1st number: 2 12/15, 2nd number: 2/9
42/15 + 2/9 is 136/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
42/15 = 42 × 3/15 × 3 = 126/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
2/9 = 2 × 5/9 × 5 = 10/45 - Add the two like fractions:
126/45 + 10/45 = 126 + 10/45 = 136/45 - So, 42/15 + 2/9 = 136/45
In mixed form: 31/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+2/9 42/15+4/9 42/30+2/9 42/15+2/18 42/15+6/9 42/45+2/9 42/15+2/27 42/15+10/9 42/75+2/9 42/15+2/45 42/15+14/9 42/15+2/63