Add 45/18 and 25/90
1st number: 2 9/18, 2nd number: 25/90
45/18 + 25/90 is 25/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
45/18 = 45 × 5/18 × 5 = 225/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
25/90 = 25 × 1/90 × 1 = 25/90 - Add the two like fractions:
225/90 + 25/90 = 225 + 25/90 = 250/90 - 250/90 simplified gives 25/9
- So, 45/18 + 25/90 = 25/9
In mixed form: 27/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+25/90 45/18+50/90 45/36+25/90 45/18+75/90 45/54+25/90 45/90+25/90