Add 28/63 and 7/54
28/63 + 7/54 is 31/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 63 × 6 = 378,
28/63 = 28 × 6/63 × 6 = 168/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
7/54 = 7 × 7/54 × 7 = 49/378 - Add the two like fractions:
168/378 + 49/378 = 168 + 49/378 = 217/378 - 217/378 simplified gives 31/54
- So, 28/63 + 7/54 = 31/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/63+7/54 28/63+14/54 84/63+7/54 28/63+21/54 28/63+35/54 28/63+49/54