Add 7/12 and 20/30
7/12 + 20/30 is 5/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
7/12 = 7 × 5/12 × 5 = 35/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
20/30 = 20 × 2/30 × 2 = 40/60 - Add the two like fractions:
35/60 + 40/60 = 35 + 40/60 = 75/60 - 75/60 simplified gives 5/4
- So, 7/12 + 20/30 = 5/4
In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12+20/30 7/12+40/30 7/24+20/30 7/12+20/60 21/12+20/30 7/12+60/30 7/36+20/30 7/12+20/90 35/12+20/30 7/60+20/30 49/12+20/30 7/84+20/30