Add 15/30 and 5/25
15/30 + 5/25 is 7/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 25 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
15/30 = 15 × 5/30 × 5 = 75/150 - Likewise, for the 2nd fraction, since 25 × 6 = 150,
5/25 = 5 × 6/25 × 6 = 30/150 - Add the two like fractions:
75/150 + 30/150 = 75 + 30/150 = 105/150 - 105/150 simplified gives 7/10
- So, 15/30 + 5/25 = 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30+10/25 15/60+5/25 15/30+5/50 45/30+5/25 15/30+15/25 15/90+5/25 15/30+5/75 75/30+5/25 15/30+35/25