Add 48/98 and 42/80
48/98 + 42/80 is 1989/1960.
Steps for adding fractions
- 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,
48/98 = 48 × 40/98 × 40 = 1920/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
42/80 = 42 × 49/80 × 49 = 2058/3920 - Add the two like fractions:
1920/3920 + 2058/3920 = 1920 + 2058/3920 = 3978/3920 - 3978/3920 simplified gives 1989/1960
- So, 48/98 + 42/80 = 1989/1960
In mixed form: 129/1960
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/98+42/80 48/98+84/80