Compare 8/45 and 7/81
8/45 is greater than 7/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
8/45 = 8 × 9/45 × 9 = 72/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
7/81 = 7 × 5/81 × 5 = 35/405 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 72/405 > 35/405 or 8/45 > 7/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45 and 7/81 8/45 and 14/81 8/90 and 7/81 24/45 and 7/81 8/45 and 21/81 40/45 and 7/81 8/45 and 35/81 56/45 and 7/81 8/45 and 49/81