Answers

Add 9/80 and 28/20

1^st number: 9/80, 2^nd number: 1 8/20

9/80 + 28/20 is 121/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 20 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   9/80 = 9 × 1/80 × 1 = 9/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   28/20 = 28 × 4/20 × 4 = 112/80
4. Add the two like fractions:
   9/80 + 112/80 = 9 + 112/80 = 121/80
5. So, 9/80 + 28/20 = 121/80
   In mixed form: 141/80

MathStep (Works offline)

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

Related: ¹⁸/₈₀+²⁸/₂₀ ⁹/₈₀+⁵⁶/₂₀ ⁹/₈₀+²⁸/₄₀ ²⁷/₈₀+²⁸/₂₀ ⁹/₈₀+⁸⁴/₂₀ ⁹/₈₀+²⁸/₆₀ ⁴⁵/₈₀+²⁸/₂₀ ⁶³/₈₀+²⁸/₂₀

Add Fractions Calculator