Compare 45/12 and 1/81
1st number: 3 9/12, 2nd number: 1/81
45/12 is greater than 1/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
45/12 = 45 × 27/12 × 27 = 1215/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
1/81 = 1 × 4/81 × 4 = 4/324 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1215/324 > 4/324 or 45/12 > 1/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12 and 1/81 45/12 and 2/81 45/24 and 1/81 45/12 and 3/81 45/36 and 1/81 45/12 and 5/81 45/60 and 1/81 45/12 and 7/81 45/84 and 1/81