Answers

Add 72/20 and 14/63

1^st number: 3 12/20, 2^nd number: 14/63

72/20 + 14/63 is 172/45.

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,
   72/20 = 72 × 63/20 × 63 = 4536/1260
3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
   14/63 = 14 × 20/63 × 20 = 280/1260
4. Add the two like fractions:
   4536/1260 + 280/1260 = 4536 + 280/1260 = 4816/1260
5. 4816/1260 simplified gives 172/45
6. So, 72/20 + 14/63 = 172/45
   In mixed form: 337/45

MathStep (Works offline)

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

Related: ⁷²/₂₀+²⁸/₆₃ ⁷²/₄₀+¹⁴/₆₃ ⁷²/₂₀+⁴²/₆₃ ⁷²/₆₀+¹⁴/₆₃ ⁷²/₂₀+⁷⁰/₆₃ ⁷²/₂₀+⁹⁸/₆₃

Add Fractions Calculator