Add 63/14 and 14/21
1st number: 4 7/14, 2nd number: 14/21
63/14 + 14/21 is 31/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
63/14 = 63 × 3/14 × 3 = 189/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
14/21 = 14 × 2/21 × 2 = 28/42 - Add the two like fractions:
189/42 + 28/42 = 189 + 28/42 = 217/42 - 217/42 simplified gives 31/6
- So, 63/14 + 14/21 = 31/6
In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/14+28/21 63/28+14/21 63/14+14/42 63/14+42/21 63/42+14/21 63/14+14/63 63/14+70/21 63/70+14/21 63/14+98/21 63/98+14/21