Compare 30/20 and 45/30
1st number: 1 10/20, 2nd number: 1 15/30
30/20 is equivalent to 45/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
30/20 = 30 × 3/20 × 3 = 90/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
45/30 = 45 × 2/30 × 2 = 90/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/60 = 90/60 or 30/20 = 45/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20 and 45/30 30/20 and 90/30 30/40 and 45/30 30/20 and 45/60 90/20 and 45/30 30/60 and 45/30 30/20 and 45/90