Add 27/18 and 45/28
1st number: 1 9/18, 2nd number: 1 17/28
27/18 + 45/28 is 87/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
27/18 = 27 × 14/18 × 14 = 378/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
45/28 = 45 × 9/28 × 9 = 405/252 - Add the two like fractions:
378/252 + 405/252 = 378 + 405/252 = 783/252 - 783/252 simplified gives 87/28
- So, 27/18 + 45/28 = 87/28
In mixed form: 33/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+45/28 27/18+90/28 27/36+45/28 27/18+45/56 81/18+45/28 27/54+45/28 27/18+45/84 27/90+45/28