Add 90/45 and 90/25
1st number: 2 0/45, 2nd number: 3 15/25
90/45 + 90/25 is 28/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
90/45 = 90 × 5/45 × 5 = 450/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
90/25 = 90 × 9/25 × 9 = 810/225 - Add the two like fractions:
450/225 + 810/225 = 450 + 810/225 = 1260/225 - 1260/225 simplified gives 28/5
- So, 90/45 + 90/25 = 28/5
In mixed form: 53/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+90/50 90/45+90/75