Add 84/21 and 15/50
1st number: 4 0/21, 2nd number: 15/50
84/21 + 15/50 is 43/10.
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,
84/21 = 84 × 50/21 × 50 = 4200/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
15/50 = 15 × 21/50 × 21 = 315/1050 - Add the two like fractions:
4200/1050 + 315/1050 = 4200 + 315/1050 = 4515/1050 - 4515/1050 simplified gives 43/10
- So, 84/21 + 15/50 = 43/10
In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21+30/50 84/42+15/50 84/21+45/50 84/63+15/50 84/21+75/50