Add 28/8 and 14/20
1st number: 3 4/8, 2nd number: 14/20
28/8 + 14/20 is 21/5.
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,
28/8 = 28 × 5/8 × 5 = 140/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
14/20 = 14 × 2/20 × 2 = 28/40 - Add the two like fractions:
140/40 + 28/40 = 140 + 28/40 = 168/40 - 168/40 simplified gives 21/5
- So, 28/8 + 14/20 = 21/5
In mixed form: 41/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+14/20 28/8+28/20 28/16+14/20 28/8+14/40 84/8+14/20 28/8+42/20 28/24+14/20 28/8+14/60 28/8+70/20 28/40+14/20 28/8+98/20 28/56+14/20