Add 30/20 and 20/12
1st number: 1 10/20, 2nd number: 1 8/12
30/20 + 20/12 is 19/6.
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,
30/20 = 30 × 3/20 × 3 = 90/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
20/12 = 20 × 5/12 × 5 = 100/60 - Add the two like fractions:
90/60 + 100/60 = 90 + 100/60 = 190/60 - 190/60 simplified gives 19/6
- So, 30/20 + 20/12 = 19/6
In mixed form: 31/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+20/12 30/20+40/12 30/40+20/12 30/20+20/24 90/20+20/12 30/20+60/12 30/60+20/12 30/20+20/36 30/20+20/60 30/20+20/84