Answers

Add 15/50 and 12/20

15/50 + 12/20 is 9/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 20 is 100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 100
2. For the 1st fraction, since 50 × 2 = 100,
   15/50 = 15 × 2/50 × 2 = 30/100
3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
   12/20 = 12 × 5/20 × 5 = 60/100
4. Add the two like fractions:
   30/100 + 60/100 = 30 + 60/100 = 90/100
5. 90/100 simplified gives 9/10
6. So, 15/50 + 12/20 = 9/10

MathStep (Works offline)

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

Related: ³⁰/₅₀+¹²/₂₀ ¹⁵/₅₀+²⁴/₂₀ ¹⁵/₅₀+¹²/₄₀ ⁴⁵/₅₀+¹²/₂₀ ¹⁵/₅₀+³⁶/₂₀ ¹⁵/₅₀+¹²/₆₀ ⁷⁵/₅₀+¹²/₂₀ ¹⁵/₅₀+⁶⁰/₂₀ ¹⁵/₅₀+⁸⁴/₂₀

Add Fractions Calculator