Answers

Add 20/98 and 90/45

1^st number: 20/98, 2^nd number: 2 0/45

20/98 + 90/45 is 108/49.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 45 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 98 × 45 = 4410,
   20/98 = 20 × 45/98 × 45 = 900/4410
3. Likewise, for the 2nd fraction, since 45 × 98 = 4410,
   90/45 = 90 × 98/45 × 98 = 8820/4410
4. Add the two like fractions:
   900/4410 + 8820/4410 = 900 + 8820/4410 = 9720/4410
5. 9720/4410 simplified gives 108/49
6. So, 20/98 + 90/45 = 108/49
   In mixed form: 210/49

MathStep (Works offline)

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

Related: ⁴⁰/₉₈+⁹⁰/₄₅ ⁶⁰/₉₈+⁹⁰/₄₅

Add Fractions Calculator