Add 30/12 and 7/15
1st number: 2 6/12, 2nd number: 7/15
30/12 + 7/15 is 89/30.
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,
7/15 = 7 × 4/15 × 4 = 28/60 - Add the two like fractions:
150/60 + 28/60 = 150 + 28/60 = 178/60 - 178/60 simplified gives 89/30
- So, 30/12 + 7/15 = 89/30
In mixed form: 229/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12+7/15 30/12+14/15 30/24+7/15 30/12+7/30 90/12+7/15 30/12+21/15 30/36+7/15 30/12+7/45 30/12+35/15 30/60+7/15 30/12+7/75 30/12+49/15 30/84+7/15