Answers

Add 20/50 and 54/21

1^st number: 20/50, 2^nd number: 2 12/21

20/50 + 54/21 is 104/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 21 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 50 × 21 = 1050,
   20/50 = 20 × 21/50 × 21 = 420/1050
3. Likewise, for the 2nd fraction, since 21 × 50 = 1050,
   54/21 = 54 × 50/21 × 50 = 2700/1050
4. Add the two like fractions:
   420/1050 + 2700/1050 = 420 + 2700/1050 = 3120/1050
5. 3120/1050 simplified gives 104/35
6. So, 20/50 + 54/21 = 104/35
   In mixed form: 234/35

MathStep (Works offline)

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

Related: ⁴⁰/₅₀+⁵⁴/₂₁ ²⁰/₅₀+⁵⁴/₄₂ ⁶⁰/₅₀+⁵⁴/₂₁ ²⁰/₅₀+⁵⁴/₆₃

Add Fractions Calculator