Add 18/49 and 90/20
1st number: 18/49, 2nd number: 4 10/20
18/49 + 90/20 is 477/98.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
18/49 = 18 × 20/49 × 20 = 360/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
90/20 = 90 × 49/20 × 49 = 4410/980 - Add the two like fractions:
360/980 + 4410/980 = 360 + 4410/980 = 4770/980 - 4770/980 simplified gives 477/98
- So, 18/49 + 90/20 = 477/98
In mixed form: 485/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/49+90/20 18/98+90/20 18/49+90/40 54/49+90/20 18/49+90/60 90/49+90/20