Add 25/20 and 21/60
1st number: 1 5/20, 2nd number: 21/60
25/20 + 21/60 is 8/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 60 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 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Add the two like fractions:
75/60 + 21/60 = 75 + 21/60 = 96/60 - 96/60 simplified gives 8/5
- So, 25/20 + 21/60 = 8/5
In mixed form: 13/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20+21/60 25/20+42/60 25/40+21/60 75/20+21/60 25/20+63/60 25/60+21/60