Add 42/14 and 12/9
1st number: 3 0/14, 2nd number: 1 3/9
42/14 + 12/9 is 13/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
42/14 = 42 × 9/14 × 9 = 378/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
12/9 = 12 × 14/9 × 14 = 168/126 - Add the two like fractions:
378/126 + 168/126 = 378 + 168/126 = 546/126 - 546/126 simplified gives 13/3
- So, 42/14 + 12/9 = 13/3
In mixed form: 41/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14+12/9 42/14+24/9 42/28+12/9 42/14+12/18 42/14+36/9 42/14+12/27 42/14+60/9 42/70+12/9 42/14+12/45 42/14+84/9 42/98+12/9 42/14+12/63