Compare 15/30 and 45/10
1st number: 15/30, 2nd number: 4 5/10
15/30 is smaller than 45/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
15/30 = 15 × 1/30 × 1 = 15/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
45/10 = 45 × 3/10 × 3 = 135/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/30 < 135/30 or 15/30 < 45/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30 and 90/10 15/60 and 45/10 15/30 and 45/20 45/30 and 45/10 15/90 and 45/10 15/30 and 45/30 75/30 and 45/10 15/30 and 45/50 15/30 and 45/70