Add 20/25 and 60/80
20/25 + 60/80 is 31/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
20/25 = 20 × 16/25 × 16 = 320/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
60/80 = 60 × 5/80 × 5 = 300/400 - Add the two like fractions:
320/400 + 300/400 = 320 + 300/400 = 620/400 - 620/400 simplified gives 31/20
- So, 20/25 + 60/80 = 31/20
In mixed form: 111/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25+60/80 20/50+60/80 60/25+60/80 20/75+60/80