Add 24/12 and 81/54
1st number: 2 0/12, 2nd number: 1 27/54
24/12 + 81/54 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
24/12 = 24 × 9/12 × 9 = 216/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
81/54 = 81 × 2/54 × 2 = 162/108 - Add the two like fractions:
216/108 + 162/108 = 216 + 162/108 = 378/108 - 378/108 simplified gives 7/2
- So, 24/12 + 81/54 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/12+81/54 72/12+81/54 24/36+81/54 24/60+81/54 24/84+81/54