Add 27/2 and 28/20
1st number: 13 1/2, 2nd number: 1 8/20
27/2 + 28/20 is 149/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
27/2 = 27 × 10/2 × 10 = 270/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
28/20 = 28 × 1/20 × 1 = 28/20 - Add the two like fractions:
270/20 + 28/20 = 270 + 28/20 = 298/20 - 298/20 simplified gives 149/10
- So, 27/2 + 28/20 = 149/10
In mixed form: 149/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/2+28/20 27/2+56/20 27/4+28/20 27/2+28/40 81/2+28/20 27/2+84/20 27/6+28/20 27/2+28/60 27/10+28/20 27/14+28/20