Compare 3/45 and 45/12
1st number: 3/45, 2nd number: 3 9/12
3/45 is smaller than 45/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
3/45 = 3 × 4/45 × 4 = 12/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
45/12 = 45 × 15/12 × 15 = 675/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 12/180 < 675/180 or 3/45 < 45/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/45 and 45/12 3/45 and 90/12 3/90 and 45/12 3/45 and 45/24 9/45 and 45/12 3/45 and 45/36 15/45 and 45/12 3/45 and 45/60 21/45 and 45/12 3/45 and 45/84