Add 21/2 and 9/28
1st number: 10 1/2, 2nd number: 9/28
21/2 + 9/28 is 303/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
21/2 = 21 × 14/2 × 14 = 294/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
9/28 = 9 × 1/28 × 1 = 9/28 - Add the two like fractions:
294/28 + 9/28 = 294 + 9/28 = 303/28 - So, 21/2 + 9/28 = 303/28
In mixed form: 1023/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2+9/28 21/2+18/28 21/4+9/28 21/2+9/56 63/2+9/28 21/2+27/28 21/6+9/28 21/2+9/84 21/2+45/28 21/10+9/28 21/2+63/28 21/14+9/28