Add 25/12 and 45/20
1st number: 2 1/12, 2nd number: 2 5/20
25/12 + 45/20 is 13/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
25/12 = 25 × 5/12 × 5 = 125/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
45/20 = 45 × 3/20 × 3 = 135/60 - Add the two like fractions:
125/60 + 135/60 = 125 + 135/60 = 260/60 - 260/60 simplified gives 13/3
- So, 25/12 + 45/20 = 13/3
In mixed form: 41/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/12+45/20 25/12+90/20 25/24+45/20 25/12+45/40 75/12+45/20 25/36+45/20 25/12+45/60 25/60+45/20 25/84+45/20