Add 21/8 and 3/28
1st number: 2 5/8, 2nd number: 3/28
21/8 + 3/28 is 153/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
21/8 = 21 × 7/8 × 7 = 147/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
3/28 = 3 × 2/28 × 2 = 6/56 - Add the two like fractions:
147/56 + 6/56 = 147 + 6/56 = 153/56 - So, 21/8 + 3/28 = 153/56
In mixed form: 241/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8+3/28 21/8+6/28 21/16+3/28 21/8+3/56 63/8+3/28 21/8+9/28 21/24+3/28 21/8+3/84 21/8+15/28 21/40+3/28 21/8+21/28 21/56+3/28