Add 15/45 and 18/36
15/45 + 18/36 is 5/6.
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,
15/45 = 15 × 4/45 × 4 = 60/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
18/36 = 18 × 5/36 × 5 = 90/180 - Add the two like fractions:
60/180 + 90/180 = 60 + 90/180 = 150/180 - 150/180 simplified gives 5/6
- So, 15/45 + 18/36 = 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/45+18/36 15/90+18/36 15/45+18/72 15/45+54/36 75/45+18/36 15/45+90/36