Add 12/20 and 4/5
12/20 + 4/5 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
12/20 = 12 × 1/20 × 1 = 12/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
4/5 = 4 × 4/5 × 4 = 16/20 - Add the two like fractions:
12/20 + 16/20 = 12 + 16/20 = 28/20 - 28/20 simplified gives 7/5
- So, 12/20 + 4/5 = 7/5
In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/20+4/5 12/20+8/5 12/40+4/5 12/20+4/10 36/20+4/5 12/20+12/5 12/60+4/5 12/20+4/15 60/20+4/5 12/20+20/5 12/20+4/25 84/20+4/5 12/20+28/5 12/20+4/35