Add 4/12 and 42/20
1st number: 4/12, 2nd number: 2 2/20
4/12 + 42/20 is 73/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
4/12 = 4 × 5/12 × 5 = 20/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
42/20 = 42 × 3/20 × 3 = 126/60 - Add the two like fractions:
20/60 + 126/60 = 20 + 126/60 = 146/60 - 146/60 simplified gives 73/30
- So, 4/12 + 42/20 = 73/30
In mixed form: 213/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12+42/20 4/12+84/20 4/24+42/20 4/12+42/40 4/36+42/20 4/12+42/60 20/12+42/20 4/60+42/20 28/12+42/20 4/84+42/20