Add 15/2 and 20/54
1st number: 7 1/2, 2nd number: 20/54
15/2 + 20/54 is 425/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 2 × 27 = 54,
15/2 = 15 × 27/2 × 27 = 405/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
20/54 = 20 × 1/54 × 1 = 20/54 - Add the two like fractions:
405/54 + 20/54 = 405 + 20/54 = 425/54 - So, 15/2 + 20/54 = 425/54
In mixed form: 747/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+20/54 15/2+40/54 15/4+20/54 45/2+20/54 15/2+60/54 15/6+20/54 75/2+20/54 15/10+20/54 15/14+20/54