Add 10/45 and 45/18
1st number: 10/45, 2nd number: 2 9/18
10/45 + 45/18 is 49/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
10/45 = 10 × 2/45 × 2 = 20/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
45/18 = 45 × 5/18 × 5 = 225/90 - Add the two like fractions:
20/90 + 225/90 = 20 + 225/90 = 245/90 - 245/90 simplified gives 49/18
- So, 10/45 + 45/18 = 49/18
In mixed form: 213/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/45+45/18 10/45+90/18 10/90+45/18 10/45+45/36 30/45+45/18 10/45+45/54 50/45+45/18 10/45+45/90 70/45+45/18