Add 18/98 and 28/90
18/98 + 28/90 is 1091/2205.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 98 × 45 = 4410,
18/98 = 18 × 45/98 × 45 = 810/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
28/90 = 28 × 49/90 × 49 = 1372/4410 - Add the two like fractions:
810/4410 + 1372/4410 = 810 + 1372/4410 = 2182/4410 - 2182/4410 simplified gives 1091/2205
- So, 18/98 + 28/90 = 1091/2205
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/98+28/90 18/98+56/90 54/98+28/90 18/98+84/90 90/98+28/90