Add 18/36 and 21/50
18/36 + 21/50 is 23/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 50 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 36 × 25 = 900,
18/36 = 18 × 25/36 × 25 = 450/900 - Likewise, for the 2nd fraction, since 50 × 18 = 900,
21/50 = 21 × 18/50 × 18 = 378/900 - Add the two like fractions:
450/900 + 378/900 = 450 + 378/900 = 828/900 - 828/900 simplified gives 23/25
- So, 18/36 + 21/50 = 23/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36+42/50 18/72+21/50 54/36+21/50 18/36+63/50 90/36+21/50