Answers

Add 45/50 and 30/21

1^st number: 45/50, 2^nd number: 1 9/21

45/50 + 30/21 is 163/70.

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,
   45/50 = 45 × 21/50 × 21 = 945/1050
3. Likewise, for the 2nd fraction, since 21 × 50 = 1050,
   30/21 = 30 × 50/21 × 50 = 1500/1050
4. Add the two like fractions:
   945/1050 + 1500/1050 = 945 + 1500/1050 = 2445/1050
5. 2445/1050 simplified gives 163/70
6. So, 45/50 + 30/21 = 163/70
   In mixed form: 223/70

MathStep (Works offline)

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

Related: ⁹⁰/₅₀+³⁰/₂₁ ⁴⁵/₅₀+⁶⁰/₂₁ ⁴⁵/₅₀+³⁰/₄₂ ⁴⁵/₅₀+⁹⁰/₂₁ ⁴⁵/₅₀+³⁰/₆₃

Add Fractions Calculator