Add 5/60 and 21/45
5/60 + 21/45 is 11/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
5/60 = 5 × 3/60 × 3 = 15/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
21/45 = 21 × 4/45 × 4 = 84/180 - Add the two like fractions:
15/180 + 84/180 = 15 + 84/180 = 99/180 - 99/180 simplified gives 11/20
- So, 5/60 + 21/45 = 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/60+21/45 5/60+42/45 5/60+21/90 15/60+21/45 5/60+63/45 25/60+21/45 35/60+21/45