Add 15/30 and 2/12
15/30 + 2/12 is 2/3.
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,
15/30 = 15 × 2/30 × 2 = 30/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
2/12 = 2 × 5/12 × 5 = 10/60 - Add the two like fractions:
30/60 + 10/60 = 30 + 10/60 = 40/60 - 40/60 simplified gives 2/3
- So, 15/30 + 2/12 = 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30+4/12 15/60+2/12 15/30+2/24 45/30+2/12 15/30+6/12 15/90+2/12 15/30+2/36 75/30+2/12 15/30+10/12 15/30+2/60 15/30+14/12 15/30+2/84