Add 40/18 and 25/45
1st number: 2 4/18, 2nd number: 25/45
40/18 + 25/45 is 25/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
40/18 = 40 × 5/18 × 5 = 200/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
25/45 = 25 × 2/45 × 2 = 50/90 - Add the two like fractions:
200/90 + 50/90 = 200 + 50/90 = 250/90 - 250/90 simplified gives 25/9
- So, 40/18 + 25/45 = 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: 80/18+25/45 40/18+50/45 40/36+25/45 40/18+25/90 40/18+75/45 40/54+25/45 40/90+25/45