Add 63/4 and 21/10
1st number: 15 3/4, 2nd number: 2 1/10
63/4 + 21/10 is 357/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
63/4 = 63 × 5/4 × 5 = 315/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
21/10 = 21 × 2/10 × 2 = 42/20 - Add the two like fractions:
315/20 + 42/20 = 315 + 42/20 = 357/20 - So, 63/4 + 21/10 = 357/20
In mixed form: 1717/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4+42/10 63/8+21/10 63/4+21/20 63/4+63/10 63/12+21/10 63/4+21/30 63/20+21/10 63/4+21/50 63/28+21/10 63/4+21/70