Add 15/20 and 27/16
1st number: 15/20, 2nd number: 1 11/16
15/20 + 27/16 is 39/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
15/20 = 15 × 4/20 × 4 = 60/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
27/16 = 27 × 5/16 × 5 = 135/80 - Add the two like fractions:
60/80 + 135/80 = 60 + 135/80 = 195/80 - 195/80 simplified gives 39/16
- So, 15/20 + 27/16 = 39/16
In mixed form: 27/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/20+27/16 15/20+54/16 15/40+27/16 15/20+27/32 45/20+27/16 15/20+81/16 15/60+27/16 15/20+27/48 75/20+27/16 15/20+27/80