Answers

Compare 63/81 and 20/27

63/81 is greater than 20/27

Steps for comparing fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 27 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 81 × 1 = 81,
   63/81 = 63 × 1/81 × 1 = 63/81
3. Likewise, for the 2nd fraction, since 27 × 3 = 81,
   20/27 = 20 × 3/27 × 3 = 60/81
4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
5. 63/81 > 60/81 or 63/81 > 20/27

MathStep (Works offline)

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

Related: ⁶³/₈₁ and ⁴⁰/₂₇ ⁶³/₈₁ and ²⁰/₅₄ ⁶³/₈₁ and ⁶⁰/₂₇ ⁶³/₈₁ and ²⁰/₈₁

Compare Fractions Calculator