Add 16/20 and 4/12
16/20 + 4/12 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
16/20 = 16 × 3/20 × 3 = 48/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
4/12 = 4 × 5/12 × 5 = 20/60 - Add the two like fractions:
48/60 + 20/60 = 48 + 20/60 = 68/60 - 68/60 simplified gives 17/15
- So, 16/20 + 4/12 = 17/15
In mixed form: 12/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+4/12 16/20+8/12 16/40+4/12 16/20+4/24 48/20+4/12 16/60+4/12 16/20+4/36 80/20+4/12 16/20+20/12 16/20+4/60 16/20+28/12 16/20+4/84