Add 21/12 and 18/50
1st number: 1 9/12, 2nd number: 18/50
21/12 + 18/50 is 211/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 50 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300 - Likewise, for the 2nd fraction, since 50 × 6 = 300,
18/50 = 18 × 6/50 × 6 = 108/300 - Add the two like fractions:
525/300 + 108/300 = 525 + 108/300 = 633/300 - 633/300 simplified gives 211/100
- So, 21/12 + 18/50 = 211/100
In mixed form: 211/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/12+18/50 21/12+36/50 21/24+18/50 63/12+18/50 21/12+54/50 21/36+18/50 21/12+90/50 21/60+18/50 21/84+18/50