Add 15/12 and 20/16
1st number: 1 3/12, 2nd number: 1 4/16
15/12 + 20/16 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
15/12 = 15 × 4/12 × 4 = 60/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
20/16 = 20 × 3/16 × 3 = 60/48 - Add the two like fractions:
60/48 + 60/48 = 60 + 60/48 = 120/48 - 120/48 simplified gives 5/2
- So, 15/12 + 20/16 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+20/16 15/12+40/16 15/24+20/16 15/12+20/32 45/12+20/16 15/12+60/16 15/36+20/16 15/12+20/48 75/12+20/16 15/60+20/16 15/12+20/80 15/84+20/16