Add 80/36 and 25/20
1st number: 2 8/36, 2nd number: 1 5/20
80/36 + 25/20 is 125/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
80/36 = 80 × 5/36 × 5 = 400/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
25/20 = 25 × 9/20 × 9 = 225/180 - Add the two like fractions:
400/180 + 225/180 = 400 + 225/180 = 625/180 - 625/180 simplified gives 125/36
- So, 80/36 + 25/20 = 125/36
In mixed form: 317/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/36+50/20 80/72+25/20 80/36+25/40 80/36+75/20 80/36+25/60