Add 4/8 and 28/20
1st number: 4/8, 2nd number: 1 8/20
4/8 + 28/20 is 19/10.
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,
4/8 = 4 × 5/8 × 5 = 20/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
28/20 = 28 × 2/20 × 2 = 56/40 - Add the two like fractions:
20/40 + 56/40 = 20 + 56/40 = 76/40 - 76/40 simplified gives 19/10
- So, 4/8 + 28/20 = 19/10
In mixed form: 19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8+56/20 4/16+28/20 4/8+28/40 12/8+28/20 4/8+84/20 4/24+28/20 4/8+28/60 20/8+28/20 4/40+28/20 28/8+28/20 4/56+28/20