Add 30/56 and 81/54
1st number: 30/56, 2nd number: 1 27/54
30/56 + 81/54 is 57/28.
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,
30/56 = 30 × 27/56 × 27 = 810/1512 - Likewise, for the 2nd fraction, since 54 × 28 = 1512,
81/54 = 81 × 28/54 × 28 = 2268/1512 - Add the two like fractions:
810/1512 + 2268/1512 = 810 + 2268/1512 = 3078/1512 - 3078/1512 simplified gives 57/28
- So, 30/56 + 81/54 = 57/28
In mixed form: 21/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/56+81/54 90/56+81/54