Add 42/12 and 42/5
1st number: 3 6/12, 2nd number: 8 2/5
42/12 + 42/5 is 119/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
42/12 = 42 × 5/12 × 5 = 210/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
42/5 = 42 × 12/5 × 12 = 504/60 - Add the two like fractions:
210/60 + 504/60 = 210 + 504/60 = 714/60 - 714/60 simplified gives 119/10
- So, 42/12 + 42/5 = 119/10
In mixed form: 119/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+42/5 42/12+84/5 42/24+42/5 42/12+42/10 42/36+42/5 42/12+42/15 42/60+42/5 42/12+42/25 42/84+42/5 42/12+42/35