Add 21/2 and 3/24
1st number: 10 1/2, 2nd number: 3/24
21/2 + 3/24 is 85/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 2 × 12 = 24,
21/2 = 21 × 12/2 × 12 = 252/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
3/24 = 3 × 1/24 × 1 = 3/24 - Add the two like fractions:
252/24 + 3/24 = 252 + 3/24 = 255/24 - 255/24 simplified gives 85/8
- So, 21/2 + 3/24 = 85/8
In mixed form: 105/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2+3/24 21/2+6/24 21/4+3/24 21/2+3/48 63/2+3/24 21/2+9/24 21/6+3/24 21/2+3/72 21/2+15/24 21/10+3/24 21/2+21/24 21/14+3/24