Add 27/4 and 15/20
1st number: 6 3/4, 2nd number: 15/20
27/4 + 15/20 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
27/4 = 27 × 5/4 × 5 = 135/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
15/20 = 15 × 1/20 × 1 = 15/20 - Add the two like fractions:
135/20 + 15/20 = 135 + 15/20 = 150/20 - 150/20 simplified gives 15/2
- So, 27/4 + 15/20 = 15/2
In mixed form: 71/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/4+15/20 27/4+30/20 27/8+15/20 27/4+15/40 81/4+15/20 27/4+45/20 27/12+15/20 27/4+15/60 27/4+75/20 27/20+15/20 27/28+15/20