Answers

Add 18/20 and 5/4

1^st number: 18/20, 2^nd number: 1 1/4

18/20 + 5/4 is 43/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 4 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   18/20 = 18 × 1/20 × 1 = 18/20
3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
   5/4 = 5 × 5/4 × 5 = 25/20
4. Add the two like fractions:
   18/20 + 25/20 = 18 + 25/20 = 43/20
5. So, 18/20 + 5/4 = 43/20
   In mixed form: 23/20

MathStep (Works offline)

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

Related: ³⁶/₂₀+⁵/₄ ¹⁸/₂₀+¹⁰/₄ ¹⁸/₄₀+⁵/₄ ¹⁸/₂₀+⁵/₈ ⁵⁴/₂₀+⁵/₄ ¹⁸/₂₀+¹⁵/₄ ¹⁸/₆₀+⁵/₄ ¹⁸/₂₀+⁵/₁₂ ⁹⁰/₂₀+⁵/₄ ¹⁸/₂₀+²⁵/₄ ¹⁸/₂₀+⁵/₂₀ ¹⁸/₂₀+³⁵/₄ ¹⁸/₂₀+⁵/₂₈

Add Fractions Calculator