Compare 42/75 and 45/81
42/75 is greater than 45/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 81 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 75 × 27 = 2025,
42/75 = 42 × 27/75 × 27 = 1134/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
45/81 = 45 × 25/81 × 25 = 1125/2025 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1134/2025 > 1125/2025 or 42/75 > 45/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75 and 45/81 42/75 and 90/81