Add 16/21 and 16/8
1st number: 16/21, 2nd number: 2 0/8
16/21 + 16/8 is 58/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
16/21 = 16 × 8/21 × 8 = 128/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
16/8 = 16 × 21/8 × 21 = 336/168 - Add the two like fractions:
128/168 + 336/168 = 128 + 336/168 = 464/168 - 464/168 simplified gives 58/21
- So, 16/21 + 16/8 = 58/21
In mixed form: 216/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/21+16/8 16/21+32/8 16/42+16/8 48/21+16/8 16/21+48/8 16/63+16/8 16/21+16/24 80/21+16/8 16/21+80/8 16/21+16/40 16/21+16/56