Add 14/21 and 84/8
1st number: 14/21, 2nd number: 10 4/8
14/21 + 84/8 is 67/6.
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,
14/21 = 14 × 8/21 × 8 = 112/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
84/8 = 84 × 21/8 × 21 = 1764/168 - Add the two like fractions:
112/168 + 1764/168 = 112 + 1764/168 = 1876/168 - 1876/168 simplified gives 67/6
- So, 14/21 + 84/8 = 67/6
In mixed form: 111/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21+84/8 14/42+84/8 14/21+84/16 42/21+84/8 14/63+84/8 14/21+84/24 70/21+84/8 14/21+84/40 98/21+84/8 14/21+84/56