Add 28/5 and 21/60
1st number: 5 3/5, 2nd number: 21/60
28/5 + 21/60 is 119/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
28/5 = 28 × 12/5 × 12 = 336/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Add the two like fractions:
336/60 + 21/60 = 336 + 21/60 = 357/60 - 357/60 simplified gives 119/20
- So, 28/5 + 21/60 = 119/20
In mixed form: 519/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/5+21/60 28/5+42/60 28/10+21/60 84/5+21/60 28/5+63/60 28/15+21/60 28/25+21/60 28/35+21/60