Add 8/14 and 21/84
8/14 + 21/84 is 23/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
8/14 = 8 × 6/14 × 6 = 48/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
21/84 = 21 × 1/84 × 1 = 21/84 - Add the two like fractions:
48/84 + 21/84 = 48 + 21/84 = 69/84 - 69/84 simplified gives 23/28
- So, 8/14 + 21/84 = 23/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/14+21/84 8/14+42/84 8/28+21/84 24/14+21/84 8/14+63/84 8/42+21/84 40/14+21/84 8/70+21/84 56/14+21/84 8/98+21/84