Add 27/90 and 20/98
27/90 + 20/98 is 247/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 98 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
27/90 = 27 × 49/90 × 49 = 1323/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
20/98 = 20 × 45/98 × 45 = 900/4410 - Add the two like fractions:
1323/4410 + 900/4410 = 1323 + 900/4410 = 2223/4410 - 2223/4410 simplified gives 247/490
- So, 27/90 + 20/98 = 247/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/90+20/98 27/90+40/98 81/90+20/98 27/90+60/98