Add 63/50 and 28/21
1st number: 1 13/50, 2nd number: 1 7/21
63/50 + 28/21 is 389/150.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
63/50 = 63 × 21/50 × 21 = 1323/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
28/21 = 28 × 50/21 × 50 = 1400/1050 - Add the two like fractions:
1323/1050 + 1400/1050 = 1323 + 1400/1050 = 2723/1050 - 2723/1050 simplified gives 389/150
- So, 63/50 + 28/21 = 389/150
In mixed form: 289/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/50+56/21 63/50+28/42 63/50+84/21 63/50+28/63