Add 10/21 and 14/8
1st number: 10/21, 2nd number: 1 6/8
10/21 + 14/8 is 187/84.
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,
10/21 = 10 × 8/21 × 8 = 80/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
14/8 = 14 × 21/8 × 21 = 294/168 - Add the two like fractions:
80/168 + 294/168 = 80 + 294/168 = 374/168 - 374/168 simplified gives 187/84
- So, 10/21 + 14/8 = 187/84
In mixed form: 219/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21+14/8 10/21+28/8 10/42+14/8 10/21+14/16 30/21+14/8 10/21+42/8 10/63+14/8 10/21+14/24 50/21+14/8 10/21+70/8 10/21+14/40 70/21+14/8 10/21+98/8 10/21+14/56