Add 21/54 and 2/14
21/54 + 2/14 is 67/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 14 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378 - Likewise, for the 2nd fraction, since 14 × 27 = 378,
2/14 = 2 × 27/14 × 27 = 54/378 - Add the two like fractions:
147/378 + 54/378 = 147 + 54/378 = 201/378 - 201/378 simplified gives 67/126
- So, 21/54 + 2/14 = 67/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54+2/14 21/54+4/14 21/54+2/28 63/54+2/14 21/54+6/14 21/54+2/42 21/54+10/14 21/54+2/70 21/54+2/98