Add 14/21 and 84/28
1st number: 14/21, 2nd number: 3 0/28
14/21 + 84/28 is 11/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
14/21 = 14 × 4/21 × 4 = 56/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
84/28 = 84 × 3/28 × 3 = 252/84 - Add the two like fractions:
56/84 + 252/84 = 56 + 252/84 = 308/84 - 308/84 simplified gives 11/3
- So, 14/21 + 84/28 = 11/3
In mixed form: 32/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21+84/28 14/42+84/28 14/21+84/56 42/21+84/28 14/63+84/28 70/21+84/28 98/21+84/28