Compare 15/45 and 35/90
15/45 is smaller than 35/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
15/45 = 15 × 2/45 × 2 = 30/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
35/90 = 35 × 1/90 × 1 = 35/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/90 < 35/90 or 15/45 < 35/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/45 and 35/90 15/45 and 70/90 15/90 and 35/90 75/45 and 35/90