Add 21/8 and 56/4
1st number: 2 5/8, 2nd number: 14 0/4
21/8 + 56/4 is 133/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 4 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 8 × 1 = 8,
21/8 = 21 × 1/8 × 1 = 21/8 - Likewise, for the 2nd fraction, since 4 × 2 = 8,
56/4 = 56 × 2/4 × 2 = 112/8 - Add the two like fractions:
21/8 + 112/8 = 21 + 112/8 = 133/8 - So, 21/8 + 56/4 = 133/8
In mixed form: 165/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8+56/4 21/16+56/4 21/8+56/8 63/8+56/4 21/24+56/4 21/8+56/12 21/40+56/4 21/8+56/20 21/56+56/4 21/8+56/28