Add 7/28 and 7/54
7/28 + 7/54 is 41/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
7/28 = 7 × 27/28 × 27 = 189/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
7/54 = 7 × 14/54 × 14 = 98/756 - Add the two like fractions:
189/756 + 98/756 = 189 + 98/756 = 287/756 - 287/756 simplified gives 41/108
- So, 7/28 + 7/54 = 41/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+7/54 7/28+14/54 7/56+7/54 21/28+7/54 7/28+21/54 7/84+7/54 35/28+7/54 7/28+35/54 49/28+7/54 7/28+49/54