Add 35/12 and 42/15
1st number: 2 11/12, 2nd number: 2 12/15
35/12 + 42/15 is 343/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
35/12 = 35 × 5/12 × 5 = 175/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
42/15 = 42 × 4/15 × 4 = 168/60 - Add the two like fractions:
175/60 + 168/60 = 175 + 168/60 = 343/60 - So, 35/12 + 42/15 = 343/60
In mixed form: 543/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12+42/15 35/12+84/15 35/24+42/15 35/12+42/30 35/36+42/15 35/12+42/45 35/60+42/15 35/12+42/75 35/84+42/15