Add 20/54 and 21/4
1st number: 20/54, 2nd number: 5 1/4
20/54 + 21/4 is 607/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 4 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 54 × 2 = 108,
20/54 = 20 × 2/54 × 2 = 40/108 - Likewise, for the 2nd fraction, since 4 × 27 = 108,
21/4 = 21 × 27/4 × 27 = 567/108 - Add the two like fractions:
40/108 + 567/108 = 40 + 567/108 = 607/108 - So, 20/54 + 21/4 = 607/108
In mixed form: 567/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/54+21/4 20/54+42/4 20/54+21/8 60/54+21/4 20/54+63/4 20/54+21/12 20/54+21/20 20/54+21/28