Add 7/14 and 15/54
7/14 + 15/54 is 7/9.
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,
7/14 = 7 × 27/14 × 27 = 189/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
15/54 = 15 × 7/54 × 7 = 105/378 - Add the two like fractions:
189/378 + 105/378 = 189 + 105/378 = 294/378 - 294/378 simplified gives 7/9
- So, 7/14 + 15/54 = 7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 7/14+30/54 7/28+15/54 21/14+15/54 7/14+45/54 7/42+15/54 35/14+15/54 7/14+75/54 7/70+15/54 49/14+15/54 7/98+15/54