Add 25/30 and 18/12
1st number: 25/30, 2nd number: 1 6/12
25/30 + 18/12 is 7/3.
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,
25/30 = 25 × 2/30 × 2 = 50/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
18/12 = 18 × 5/12 × 5 = 90/60 - Add the two like fractions:
50/60 + 90/60 = 50 + 90/60 = 140/60 - 140/60 simplified gives 7/3
- So, 25/30 + 18/12 = 7/3
In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30+18/12 25/30+36/12 25/60+18/12 25/30+18/24 75/30+18/12 25/30+54/12 25/90+18/12 25/30+18/36 25/30+90/12 25/30+18/60 25/30+18/84