Add 5/21 and 63/35
1st number: 5/21, 2nd number: 1 28/35
5/21 + 63/35 is 214/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
5/21 = 5 × 5/21 × 5 = 25/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
63/35 = 63 × 3/35 × 3 = 189/105 - Add the two like fractions:
25/105 + 189/105 = 25 + 189/105 = 214/105 - So, 5/21 + 63/35 = 214/105
In mixed form: 24/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/21+63/35 5/42+63/35 5/21+63/70 15/21+63/35 5/63+63/35 25/21+63/35 35/21+63/35