Add 15/2 and 12/54
1st number: 7 1/2, 2nd number: 12/54
15/2 + 12/54 is 139/18.
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,
12/54 = 12 × 1/54 × 1 = 12/54 - Add the two like fractions:
405/54 + 12/54 = 405 + 12/54 = 417/54 - 417/54 simplified gives 139/18
- So, 15/2 + 12/54 = 139/18
In mixed form: 713/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+12/54 15/2+24/54 15/4+12/54 45/2+12/54 15/2+36/54 15/6+12/54 75/2+12/54 15/2+60/54 15/10+12/54 15/2+84/54 15/14+12/54