Answers

Add 70/98 and 90/80

1^st number: 70/98, 2^nd number: 1 10/80

70/98 + 90/80 is 103/56.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 98 × 40 = 3920,
   70/98 = 70 × 40/98 × 40 = 2800/3920
3. Likewise, for the 2nd fraction, since 80 × 49 = 3920,
   90/80 = 90 × 49/80 × 49 = 4410/3920
4. Add the two like fractions:
   2800/3920 + 4410/3920 = 2800 + 4410/3920 = 7210/3920
5. 7210/3920 simplified gives 103/56
6. So, 70/98 + 90/80 = 103/56
   In mixed form: 147/56

MathStep (Works offline)

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

Related:

Add Fractions Calculator