Add 63/4 and 21/63
1st number: 15 3/4, 2nd number: 21/63
63/4 + 21/63 is 193/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
63/4 = 63 × 63/4 × 63 = 3969/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
21/63 = 21 × 4/63 × 4 = 84/252 - Add the two like fractions:
3969/252 + 84/252 = 3969 + 84/252 = 4053/252 - 4053/252 simplified gives 193/12
- So, 63/4 + 21/63 = 193/12
In mixed form: 161/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4+42/63 63/8+21/63 63/12+21/63 63/20+21/63 63/28+21/63