Add 21/4 and 7/63
1st number: 5 1/4, 2nd number: 7/63
21/4 + 7/63 is 193/36.
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,
21/4 = 21 × 63/4 × 63 = 1323/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
7/63 = 7 × 4/63 × 4 = 28/252 - Add the two like fractions:
1323/252 + 28/252 = 1323 + 28/252 = 1351/252 - 1351/252 simplified gives 193/36
- So, 21/4 + 7/63 = 193/36
In mixed form: 513/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4+7/63 21/4+14/63 21/8+7/63 63/4+7/63 21/4+21/63 21/12+7/63 21/4+35/63 21/20+7/63 21/4+49/63 21/28+7/63