Add 14/8 and 21/20
1st number: 1 6/8, 2nd number: 1 1/20
14/8 + 21/20 is 14/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
14/8 = 14 × 5/8 × 5 = 70/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
21/20 = 21 × 2/20 × 2 = 42/40 - Add the two like fractions:
70/40 + 42/40 = 70 + 42/40 = 112/40 - 112/40 simplified gives 14/5
- So, 14/8 + 21/20 = 14/5
In mixed form: 24/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/8+21/20 14/8+42/20 14/16+21/20 14/8+21/40 42/8+21/20 14/8+63/20 14/24+21/20 14/8+21/60 70/8+21/20 14/40+21/20 98/8+21/20 14/56+21/20