Add 90/21 and 28/50
1st number: 4 6/21, 2nd number: 28/50
90/21 + 28/50 is 848/175.
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,
90/21 = 90 × 50/21 × 50 = 4500/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
28/50 = 28 × 21/50 × 21 = 588/1050 - Add the two like fractions:
4500/1050 + 588/1050 = 4500 + 588/1050 = 5088/1050 - 5088/1050 simplified gives 848/175
- So, 90/21 + 28/50 = 848/175
In mixed form: 4148/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21+56/50 90/42+28/50 90/21+84/50 90/63+28/50