Answers

Add 20/90 and 45/90

20/90 + 45/90 is 13/18.

Steps for adding fractions

1. Add the two fractions:
   20/90 + 45/90 = 20 + 45/90 = 65/90
2. 65/90 simplified gives 13/18
3. So, 20/90 + 45/90 = 13/18

MathStep (Works offline)

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

Related: ⁴⁰/₉₀+⁴⁵/₉₀ ⁶⁰/₉₀+⁴⁵/₉₀

Add Fractions Calculator