Add 30/18 and 5/25
1st number: 1 12/18, 2nd number: 5/25
30/18 + 5/25 is 28/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
30/18 = 30 × 25/18 × 25 = 750/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
5/25 = 5 × 18/25 × 18 = 90/450 - Add the two like fractions:
750/450 + 90/450 = 750 + 90/450 = 840/450 - 840/450 simplified gives 28/15
- So, 30/18 + 5/25 = 28/15
In mixed form: 113/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+5/25 30/18+10/25 30/36+5/25 30/18+5/50 90/18+5/25 30/18+15/25 30/54+5/25 30/18+5/75 30/90+5/25 30/18+35/25