Add 54/28 and 81/12
1st number: 1 26/28, 2nd number: 6 9/12
54/28 + 81/12 is 243/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
54/28 = 54 × 3/28 × 3 = 162/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
81/12 = 81 × 7/12 × 7 = 567/84 - Add the two like fractions:
162/84 + 567/84 = 162 + 567/84 = 729/84 - 729/84 simplified gives 243/28
- So, 54/28 + 81/12 = 243/28
In mixed form: 819/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56+81/12 54/28+81/24 54/84+81/12 54/28+81/36 54/28+81/60 54/28+81/84