Add 5/45 and 18/36
5/45 + 18/36 is 11/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
5/45 = 5 × 4/45 × 4 = 20/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
18/36 = 18 × 5/36 × 5 = 90/180 - Add the two like fractions:
20/180 + 90/180 = 20 + 90/180 = 110/180 - 110/180 simplified gives 11/18
- So, 5/45 + 18/36 = 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/45+18/36 5/90+18/36 5/45+18/72 15/45+18/36 5/45+54/36 25/45+18/36 5/45+90/36 35/45+18/36