Add 25/15 and 5/20
1st number: 1 10/15, 2nd number: 5/20
25/15 + 5/20 is 23/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
25/15 = 25 × 4/15 × 4 = 100/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
5/20 = 5 × 3/20 × 3 = 15/60 - Add the two like fractions:
100/60 + 15/60 = 100 + 15/60 = 115/60 - 115/60 simplified gives 23/12
- So, 25/15 + 5/20 = 23/12
In mixed form: 111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/15+5/20 25/15+10/20 25/30+5/20 25/15+5/40 75/15+5/20 25/15+15/20 25/45+5/20 25/15+5/60 25/15+25/20 25/75+5/20 25/15+35/20