Add 30/12 and 12/15
1st number: 2 6/12, 2nd number: 12/15
30/12 + 12/15 is 33/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
30/12 = 30 × 5/12 × 5 = 150/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
12/15 = 12 × 4/15 × 4 = 48/60 - Add the two like fractions:
150/60 + 48/60 = 150 + 48/60 = 198/60 - 198/60 simplified gives 33/10
- So, 30/12 + 12/15 = 33/10
In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12+12/15 30/12+24/15 30/24+12/15 30/12+12/30 90/12+12/15 30/12+36/15 30/36+12/15 30/12+12/45 30/12+60/15 30/60+12/15 30/12+12/75 30/12+84/15 30/84+12/15