Add 9/98 and 18/5, Solve 9/98 + 3 3/5 as a fraction

Add 9/98 and 18/5

1^st number: 9/98, 2^nd number: 3 3/5

9/98 + 18/5 is 1809/490.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 5 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 98 × 5 = 490,
9/98 = 9 × 5/98 × 5 = 45/490
Likewise, for the 2nd fraction, since 5 × 98 = 490,
18/5 = 18 × 98/5 × 98 = 1764/490
Add the two like fractions:
45/490 + 1764/490 = 45 + 1764/490 = 1809/490
So, 9/98 + 18/5 = 1809/490
In mixed form: 3339/490

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad