Answers

Add 50/20 and 21/63

1^st number: 2 10/20, 2^nd number: 21/63

50/20 + 21/63 is 17/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 63 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 20 × 63 = 1260,
   50/20 = 50 × 63/20 × 63 = 3150/1260
3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
   21/63 = 21 × 20/63 × 20 = 420/1260
4. Add the two like fractions:
   3150/1260 + 420/1260 = 3150 + 420/1260 = 3570/1260
5. 3570/1260 simplified gives 17/6
6. So, 50/20 + 21/63 = 17/6
   In mixed form: 25/6

MathStep (Works offline)

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

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

Add Fractions Calculator