Add 21/2 and 48/63
1st number: 10 1/2, 2nd number: 48/63
21/2 + 48/63 is 473/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
21/2 = 21 × 63/2 × 63 = 1323/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
48/63 = 48 × 2/63 × 2 = 96/126 - Add the two like fractions:
1323/126 + 96/126 = 1323 + 96/126 = 1419/126 - 1419/126 simplified gives 473/42
- So, 21/2 + 48/63 = 473/42
In mixed form: 1111/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2+48/63 21/2+96/63 21/4+48/63 63/2+48/63 21/6+48/63 21/10+48/63 21/14+48/63