Add 18/49 and 45/90
18/49 + 45/90 is 85/98.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
18/49 = 18 × 90/49 × 90 = 1620/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
45/90 = 45 × 49/90 × 49 = 2205/4410 - Add the two like fractions:
1620/4410 + 2205/4410 = 1620 + 2205/4410 = 3825/4410 - 3825/4410 simplified gives 85/98
- So, 18/49 + 45/90 = 85/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/49+45/90 18/98+45/90 54/49+45/90 90/49+45/90