Answers

Add 21/80 and 4/80

21/80 + 4/80 is 5/16.

Steps for adding fractions

1. Add the two fractions:
   21/80 + 4/80 = 21 + 4/80 = 25/80
2. 25/80 simplified gives 5/16
3. So, 21/80 + 4/80 = 5/16

MathStep (Works offline)

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

Related: ⁴²/₈₀+⁴/₈₀ ²¹/₈₀+⁸/₈₀ ⁶³/₈₀+⁴/₈₀ ²¹/₈₀+¹²/₈₀ ²¹/₈₀+²⁰/₈₀ ²¹/₈₀+²⁸/₈₀

Add Fractions Calculator