Compare 45/20 and 75/45
1st number: 2 5/20, 2nd number: 1 30/45
45/20 is greater than 75/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
45/20 = 45 × 9/20 × 9 = 405/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
75/45 = 75 × 4/45 × 4 = 300/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 405/180 > 300/180 or 45/20 > 75/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20 and 75/45 45/40 and 75/45 45/20 and 75/90 45/60 and 75/45