Compare 28/20 and 16/81
1st number: 1 8/20, 2nd number: 16/81
28/20 is greater than 16/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 20 × 81 = 1620,
28/20 = 28 × 81/20 × 81 = 2268/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
16/81 = 16 × 20/81 × 20 = 320/1620 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2268/1620 > 320/1620 or 28/20 > 16/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20 and 16/81 28/20 and 32/81 28/40 and 16/81 84/20 and 16/81 28/20 and 48/81 28/60 and 16/81 28/20 and 80/81