Add 27/90 and 5/28
27/90 + 5/28 is 67/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
27/90 = 27 × 14/90 × 14 = 378/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
5/28 = 5 × 45/28 × 45 = 225/1260 - Add the two like fractions:
378/1260 + 225/1260 = 378 + 225/1260 = 603/1260 - 603/1260 simplified gives 67/140
- So, 27/90 + 5/28 = 67/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/90+5/28 27/90+10/28 27/90+5/56 81/90+5/28 27/90+15/28 27/90+5/84 27/90+25/28 27/90+35/28