Add 15/2 and 27/12
1st number: 7 1/2, 2nd number: 2 3/12
15/2 + 27/12 is 39/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 2 × 6 = 12,
15/2 = 15 × 6/2 × 6 = 90/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
27/12 = 27 × 1/12 × 1 = 27/12 - Add the two like fractions:
90/12 + 27/12 = 90 + 27/12 = 117/12 - 117/12 simplified gives 39/4
- So, 15/2 + 27/12 = 39/4
In mixed form: 93/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+27/12 15/2+54/12 15/4+27/12 15/2+27/24 45/2+27/12 15/2+81/12 15/6+27/12 15/2+27/36 75/2+27/12 15/10+27/12 15/2+27/60 15/14+27/12 15/2+27/84