Add 49/21 and 28/36
1st number: 2 7/21, 2nd number: 28/36
49/21 + 28/36 is 28/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
49/21 = 49 × 12/21 × 12 = 588/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
28/36 = 28 × 7/36 × 7 = 196/252 - Add the two like fractions:
588/252 + 196/252 = 588 + 196/252 = 784/252 - 784/252 simplified gives 28/9
- So, 49/21 + 28/36 = 28/9
In mixed form: 31/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+28/36 49/21+56/36 49/42+28/36 49/21+28/72 49/21+84/36 49/63+28/36