Add 16/84 and 21/8
1st number: 16/84, 2nd number: 2 5/8
16/84 + 21/8 is 473/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
16/84 = 16 × 2/84 × 2 = 32/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
21/8 = 21 × 21/8 × 21 = 441/168 - Add the two like fractions:
32/168 + 441/168 = 32 + 441/168 = 473/168 - So, 16/84 + 21/8 = 473/168
In mixed form: 2137/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/84+21/8 16/84+42/8 16/84+21/16 48/84+21/8 16/84+63/8 16/84+21/24 80/84+21/8 16/84+21/40 16/84+21/56