Compare 28/42 and 5/81
28/42 is greater than 5/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
28/42 = 28 × 27/42 × 27 = 756/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
5/81 = 5 × 14/81 × 14 = 70/1134 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 756/1134 > 70/1134 or 28/42 > 5/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42 and 5/81 28/42 and 10/81 28/84 and 5/81 84/42 and 5/81 28/42 and 15/81 28/42 and 25/81 28/42 and 35/81