Add 25/20 and 28/8
1st number: 1 5/20, 2nd number: 3 4/8
25/20 + 28/8 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
25/20 = 25 × 2/20 × 2 = 50/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
28/8 = 28 × 5/8 × 5 = 140/40 - Add the two like fractions:
50/40 + 140/40 = 50 + 140/40 = 190/40 - 190/40 simplified gives 19/4
- So, 25/20 + 28/8 = 19/4
In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20+28/8 25/20+56/8 25/40+28/8 25/20+28/16 75/20+28/8 25/20+84/8 25/60+28/8 25/20+28/24 25/20+28/40 25/20+28/56