Add 18/28 and 12/54
18/28 + 12/54 is 109/126.
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,
18/28 = 18 × 27/28 × 27 = 486/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
12/54 = 12 × 14/54 × 14 = 168/756 - Add the two like fractions:
486/756 + 168/756 = 486 + 168/756 = 654/756 - 654/756 simplified gives 109/126
- So, 18/28 + 12/54 = 109/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+12/54 18/28+24/54 18/56+12/54 54/28+12/54 18/28+36/54 18/84+12/54 90/28+12/54 18/28+60/54 18/28+84/54