Compare 20/4 and 16/81
1st number: 5 0/4, 2nd number: 16/81
20/4 is greater than 16/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
20/4 = 20 × 81/4 × 81 = 1620/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
16/81 = 16 × 4/81 × 4 = 64/324 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1620/324 > 64/324 or 20/4 > 16/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4 and 16/81 20/4 and 32/81 20/8 and 16/81 60/4 and 16/81 20/4 and 48/81 20/12 and 16/81 20/4 and 80/81 20/28 and 16/81