Add 28/20 and 25/10
1st number: 1 8/20, 2nd number: 2 5/10
28/20 + 25/10 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
28/20 = 28 × 1/20 × 1 = 28/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
25/10 = 25 × 2/10 × 2 = 50/20 - Add the two like fractions:
28/20 + 50/20 = 28 + 50/20 = 78/20 - 78/20 simplified gives 39/10
- So, 28/20 + 25/10 = 39/10
In mixed form: 39/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20+25/10 28/20+50/10 28/40+25/10 28/20+25/20 84/20+25/10 28/20+75/10 28/60+25/10 28/20+25/30 28/20+25/50 28/20+25/70