Add 18/21 and 75/50
1st number: 18/21, 2nd number: 1 25/50
18/21 + 75/50 is 33/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
18/21 = 18 × 50/21 × 50 = 900/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
75/50 = 75 × 21/50 × 21 = 1575/1050 - Add the two like fractions:
900/1050 + 1575/1050 = 900 + 1575/1050 = 2475/1050 - 2475/1050 simplified gives 33/14
- So, 18/21 + 75/50 = 33/14
In mixed form: 25/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/21+75/50 18/42+75/50 54/21+75/50 18/63+75/50 90/21+75/50