Add 5/14 and 21/54
5/14 + 21/54 is 47/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 14 × 27 = 378,
5/14 = 5 × 27/14 × 27 = 135/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378 - Add the two like fractions:
135/378 + 147/378 = 135 + 147/378 = 282/378 - 282/378 simplified gives 47/63
- So, 5/14 + 21/54 = 47/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/14+21/54 5/14+42/54 5/28+21/54 15/14+21/54 5/14+63/54 5/42+21/54 25/14+21/54 5/70+21/54 35/14+21/54 5/98+21/54