Add 49/21 and 28/5
1st number: 2 7/21, 2nd number: 5 3/5
49/21 + 28/5 is 119/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
49/21 = 49 × 5/21 × 5 = 245/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
28/5 = 28 × 21/5 × 21 = 588/105 - Add the two like fractions:
245/105 + 588/105 = 245 + 588/105 = 833/105 - 833/105 simplified gives 119/15
- So, 49/21 + 28/5 = 119/15
In mixed form: 714/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+28/5 49/21+56/5 49/42+28/5 49/21+28/10 49/21+84/5 49/63+28/5 49/21+28/15 49/21+28/25 49/21+28/35