Add 14/20 and 21/30
14/20 + 21/30 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
14/20 = 14 × 3/20 × 3 = 42/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
21/30 = 21 × 2/30 × 2 = 42/60 - Add the two like fractions:
42/60 + 42/60 = 42 + 42/60 = 84/60 - 84/60 simplified gives 7/5
- So, 14/20 + 21/30 = 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: 28/20+21/30 14/20+42/30 14/40+21/30 14/20+21/60 42/20+21/30 14/20+63/30 14/60+21/30 14/20+21/90 70/20+21/30 98/20+21/30