Add 12/14 and 3/20
12/14 + 3/20 is 141/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
12/14 = 12 × 10/14 × 10 = 120/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
3/20 = 3 × 7/20 × 7 = 21/140 - Add the two like fractions:
120/140 + 21/140 = 120 + 21/140 = 141/140 - So, 12/14 + 3/20 = 141/140
In mixed form: 11/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14+3/20 12/14+6/20 12/28+3/20 12/14+3/40 36/14+3/20 12/14+9/20 12/42+3/20 12/14+3/60 60/14+3/20 12/14+15/20 12/70+3/20 84/14+3/20 12/14+21/20 12/98+3/20