Add 5/15 and 28/54
5/15 + 28/54 is 23/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
5/15 = 5 × 18/15 × 18 = 90/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
28/54 = 28 × 5/54 × 5 = 140/270 - Add the two like fractions:
90/270 + 140/270 = 90 + 140/270 = 230/270 - 230/270 simplified gives 23/27
- So, 5/15 + 28/54 = 23/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/15+28/54 5/15+56/54 5/30+28/54 5/15+84/54 5/45+28/54 25/15+28/54 5/75+28/54 35/15+28/54