Add 12/20 and 45/25
1st number: 12/20, 2nd number: 1 20/25
12/20 + 45/25 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
12/20 = 12 × 5/20 × 5 = 60/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
45/25 = 45 × 4/25 × 4 = 180/100 - Add the two like fractions:
60/100 + 180/100 = 60 + 180/100 = 240/100 - 240/100 simplified gives 12/5
- So, 12/20 + 45/25 = 12/5
In mixed form: 22/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/20+45/25 12/20+90/25 12/40+45/25 12/20+45/50 36/20+45/25 12/60+45/25 12/20+45/75 60/20+45/25 84/20+45/25