Add 27/84 and 1/90
27/84 + 1/90 is 419/1260.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
27/84 = 27 × 15/84 × 15 = 405/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
1/90 = 1 × 14/90 × 14 = 14/1260 - Add the two like fractions:
405/1260 + 14/1260 = 405 + 14/1260 = 419/1260 - So, 27/84 + 1/90 = 419/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+1/90 27/84+2/90 81/84+1/90 27/84+3/90 27/84+5/90 27/84+7/90