Compare 20/35 and 15/45
20/35 is greater than 15/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
20/35 = 20 × 9/35 × 9 = 180/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
15/45 = 15 × 7/45 × 7 = 105/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 180/315 > 105/315 or 20/35 > 15/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/35 and 15/45 20/35 and 30/45 20/70 and 15/45 20/35 and 15/90 60/35 and 15/45 20/35 and 75/45