Add 18/56 and 40/54
18/56 + 40/54 is 803/756.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 54 is 1512
Next, find the equivalent fraction of both fractional numbers with denominator 1512 - For the 1st fraction, since 56 × 27 = 1512,
18/56 = 18 × 27/56 × 27 = 486/1512 - Likewise, for the 2nd fraction, since 54 × 28 = 1512,
40/54 = 40 × 28/54 × 28 = 1120/1512 - Add the two like fractions:
486/1512 + 1120/1512 = 486 + 1120/1512 = 1606/1512 - 1606/1512 simplified gives 803/756
- So, 18/56 + 40/54 = 803/756
In mixed form: 147/756
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56+40/54 18/56+80/54 54/56+40/54 90/56+40/54