Add 21/5 and 5/60
1st number: 4 1/5, 2nd number: 5/60
21/5 + 5/60 is 257/60.
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,
21/5 = 21 × 12/5 × 12 = 252/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
5/60 = 5 × 1/60 × 1 = 5/60 - Add the two like fractions:
252/60 + 5/60 = 252 + 5/60 = 257/60 - So, 21/5 + 5/60 = 257/60
In mixed form: 417/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+5/60 21/5+10/60 21/10+5/60 63/5+5/60 21/5+15/60 21/15+5/60 21/5+25/60 21/25+5/60 21/5+35/60 21/35+5/60