Add 20/30 and 30/12
1st number: 20/30, 2nd number: 2 6/12
20/30 + 30/12 is 19/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
20/30 = 20 × 2/30 × 2 = 40/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
30/12 = 30 × 5/12 × 5 = 150/60 - Add the two like fractions:
40/60 + 150/60 = 40 + 150/60 = 190/60 - 190/60 simplified gives 19/6
- So, 20/30 + 30/12 = 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: 40/30+30/12 20/30+60/12 20/60+30/12 20/30+30/24 60/30+30/12 20/30+90/12 20/90+30/12 20/30+30/36 20/30+30/60 20/30+30/84