Add 42/20 and 42/12
1st number: 2 2/20, 2nd number: 3 6/12
42/20 + 42/12 is 28/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
42/20 = 42 × 3/20 × 3 = 126/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
42/12 = 42 × 5/12 × 5 = 210/60 - Add the two like fractions:
126/60 + 210/60 = 126 + 210/60 = 336/60 - 336/60 simplified gives 28/5
- So, 42/20 + 42/12 = 28/5
In mixed form: 53/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+42/12 42/20+84/12 42/40+42/12 42/20+42/24 42/60+42/12 42/20+42/36 42/20+42/60 42/20+42/84