Add 63/6 and 5/21
1st number: 10 3/6, 2nd number: 5/21
63/6 + 5/21 is 451/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
63/6 = 63 × 7/6 × 7 = 441/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
5/21 = 5 × 2/21 × 2 = 10/42 - Add the two like fractions:
441/42 + 10/42 = 441 + 10/42 = 451/42 - So, 63/6 + 5/21 = 451/42
In mixed form: 1031/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/6+10/21 63/12+5/21 63/6+5/42 63/6+15/21 63/18+5/21 63/6+5/63 63/6+25/21 63/30+5/21 63/6+35/21 63/42+5/21