Add 21/60 and 5/18
21/60 + 5/18 is 113/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
21/60 = 21 × 3/60 × 3 = 63/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
5/18 = 5 × 10/18 × 10 = 50/180 - Add the two like fractions:
63/180 + 50/180 = 63 + 50/180 = 113/180 - So, 21/60 + 5/18 = 113/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60+5/18 21/60+10/18 21/60+5/36 63/60+5/18 21/60+15/18 21/60+5/54 21/60+25/18 21/60+5/90 21/60+35/18