Compare 30/20 and 90/4
1st number: 1 10/20, 2nd number: 22 2/4
30/20 is smaller than 90/4
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
30/20 = 30 × 1/20 × 1 = 30/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
90/4 = 90 × 5/4 × 5 = 450/20 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/20 < 450/20 or 30/20 < 90/4
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 90/4 30/40 and 90/4 30/20 and 90/8 90/20 and 90/4 30/60 and 90/4 30/20 and 90/12 30/20 and 90/20 30/20 and 90/28