Answers

Add 90/80 and 40/98

1^st number: 1 10/80, 2^nd number: 40/98

90/80 + 40/98 is 601/392.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 98 is 3920
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3920
2. For the 1st fraction, since 80 × 49 = 3920,
   90/80 = 90 × 49/80 × 49 = 4410/3920
3. Likewise, for the 2nd fraction, since 98 × 40 = 3920,
   40/98 = 40 × 40/98 × 40 = 1600/3920
4. Add the two like fractions:
   4410/3920 + 1600/3920 = 4410 + 1600/3920 = 6010/3920
5. 6010/3920 simplified gives 601/392
6. So, 90/80 + 40/98 = 601/392
   In mixed form: 1209/392

MathStep (Works offline)

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

Related: ⁹⁰/₈₀+⁸⁰/₉₈

Add Fractions Calculator