Add 25/20 and 3/12
1st number: 1 5/20, 2nd number: 3/12
25/20 + 3/12 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
25/20 = 25 × 3/20 × 3 = 75/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60 - Add the two like fractions:
75/60 + 15/60 = 75 + 15/60 = 90/60 - 90/60 simplified gives 3/2
- So, 25/20 + 3/12 = 3/2
In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20+3/12 25/20+6/12 25/40+3/12 25/20+3/24 75/20+3/12 25/20+9/12 25/60+3/12 25/20+3/36 25/20+15/12 25/20+3/60 25/20+21/12 25/20+3/84