Add 63/21 and 63/14
1st number: 3 0/21, 2nd number: 4 7/14
63/21 + 63/14 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
63/21 = 63 × 2/21 × 2 = 126/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
63/14 = 63 × 3/14 × 3 = 189/42 - Add the two like fractions:
126/42 + 189/42 = 126 + 189/42 = 315/42 - 315/42 simplified gives 15/2
- So, 63/21 + 63/14 = 15/2
In mixed form: 71/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+63/14 63/21+63/28 63/21+63/42 63/21+63/70 63/21+63/98