Add 30/12 and 9/8
1st number: 2 6/12, 2nd number: 1 1/8
30/12 + 9/8 is 29/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
30/12 = 30 × 2/12 × 2 = 60/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
9/8 = 9 × 3/8 × 3 = 27/24 - Add the two like fractions:
60/24 + 27/24 = 60 + 27/24 = 87/24 - 87/24 simplified gives 29/8
- So, 30/12 + 9/8 = 29/8
In mixed form: 35/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12+9/8 30/12+18/8 30/24+9/8 30/12+9/16 90/12+9/8 30/12+27/8 30/36+9/8 30/12+9/24 30/12+45/8 30/60+9/8 30/12+9/40 30/12+63/8 30/84+9/8 30/12+9/56