Add 18/12 and 1/30
1st number: 1 6/12, 2nd number: 1/30
18/12 + 1/30 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
18/12 = 18 × 5/12 × 5 = 90/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
1/30 = 1 × 2/30 × 2 = 2/60 - Add the two like fractions:
90/60 + 2/60 = 90 + 2/60 = 92/60 - 92/60 simplified gives 23/15
- So, 18/12 + 1/30 = 23/15
In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12+1/30 18/12+2/30 18/24+1/30 18/12+1/60 54/12+1/30 18/12+3/30 18/36+1/30 18/12+1/90 90/12+1/30 18/12+5/30 18/60+1/30 18/12+7/30 18/84+1/30