Compare 30/75 and 3/90
30/75 is greater than 3/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
30/75 = 30 × 6/75 × 6 = 180/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
3/90 = 3 × 5/90 × 5 = 15/450 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 180/450 > 15/450 or 30/75 > 3/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/75 and 3/90 30/75 and 6/90 90/75 and 3/90 30/75 and 9/90 30/75 and 15/90 30/75 and 21/90