Add 84/98 and 48/80, Solve 84/98 + 48/80 as a fraction

Add 84/98 and 48/80

84/98 + 48/80 is 51/35.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 80 is 3920

Next, find the equivalent fraction of both fractional numbers with denominator 3920
For the 1st fraction, since 98 × 40 = 3920,
84/98 = 84 × 40/98 × 40 = 3360/3920
Likewise, for the 2nd fraction, since 80 × 49 = 3920,
48/80 = 48 × 49/80 × 49 = 2352/3920
Add the two like fractions:
3360/3920 + 2352/3920 = 3360 + 2352/3920 = 5712/3920
5712/3920 simplified gives 51/35
So, 84/98 + 48/80 = 51/35
In mixed form: 116/35

MathStep (Works offline)

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