Add 45/20 and 25/9
1st number: 2 5/20, 2nd number: 2 7/9
45/20 + 25/9 is 181/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
45/20 = 45 × 9/20 × 9 = 405/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
25/9 = 25 × 20/9 × 20 = 500/180 - Add the two like fractions:
405/180 + 500/180 = 405 + 500/180 = 905/180 - 905/180 simplified gives 181/36
- So, 45/20 + 25/9 = 181/36
In mixed form: 51/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+25/9 45/20+50/9 45/40+25/9 45/20+25/18 45/20+75/9 45/60+25/9 45/20+25/27 45/20+25/45 45/20+25/63