Add 1/30 and 18/12
1st number: 1/30, 2nd number: 1 6/12
1/30 + 18/12 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
1/30 = 1 × 2/30 × 2 = 2/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
18/12 = 18 × 5/12 × 5 = 90/60 - Add the two like fractions:
2/60 + 90/60 = 2 + 90/60 = 92/60 - 92/60 simplified gives 23/15
- So, 1/30 + 18/12 = 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: 2/30+18/12 1/30+36/12 1/60+18/12 1/30+18/24 3/30+18/12 1/30+54/12 1/90+18/12 1/30+18/36 5/30+18/12 1/30+90/12 1/30+18/60 7/30+18/12 1/30+18/84