Add 27/15 and 25/30
1st number: 1 12/15, 2nd number: 25/30
27/15 + 25/30 is 79/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
27/15 = 27 × 2/15 × 2 = 54/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
25/30 = 25 × 1/30 × 1 = 25/30 - Add the two like fractions:
54/30 + 25/30 = 54 + 25/30 = 79/30 - So, 27/15 + 25/30 = 79/30
In mixed form: 219/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+25/30 27/15+50/30 27/30+25/30 27/15+25/60 81/15+25/30 27/15+75/30 27/45+25/30 27/15+25/90 27/75+25/30