Compare 3/45 and 3/30
3/45 is smaller than 3/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
3/45 = 3 × 2/45 × 2 = 6/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
3/30 = 3 × 3/30 × 3 = 9/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 6/90 < 9/90 or 3/45 < 3/30
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 3/30 3/45 and 6/30 3/90 and 3/30 3/45 and 3/60 9/45 and 3/30 3/45 and 9/30 3/45 and 3/90 15/45 and 3/30 3/45 and 15/30 21/45 and 3/30 3/45 and 21/30