Add 30/12 and 18/8
1st number: 2 6/12, 2nd number: 2 2/8
30/12 + 18/8 is 19/4.
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,
18/8 = 18 × 3/8 × 3 = 54/24 - Add the two like fractions:
60/24 + 54/24 = 60 + 54/24 = 114/24 - 114/24 simplified gives 19/4
- So, 30/12 + 18/8 = 19/4
In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12+18/8 30/12+36/8 30/24+18/8 30/12+18/16 90/12+18/8 30/12+54/8 30/36+18/8 30/12+18/24 30/12+90/8 30/60+18/8 30/12+18/40 30/84+18/8 30/12+18/56