Add 27/12 and 24/15
1st number: 2 3/12, 2nd number: 1 9/15
27/12 + 24/15 is 77/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
27/12 = 27 × 5/12 × 5 = 135/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
24/15 = 24 × 4/15 × 4 = 96/60 - Add the two like fractions:
135/60 + 96/60 = 135 + 96/60 = 231/60 - 231/60 simplified gives 77/20
- So, 27/12 + 24/15 = 77/20
In mixed form: 317/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12+24/15 27/12+48/15 27/24+24/15 27/12+24/30 81/12+24/15 27/12+72/15 27/36+24/15 27/12+24/45 27/60+24/15 27/12+24/75 27/84+24/15