Compare 1/20 and 9/90
1/20 is smaller than 9/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
9/90 = 9 × 2/90 × 2 = 18/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 9/180 < 18/180 or 1/20 < 9/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20 and 9/90 1/20 and 18/90 1/40 and 9/90 3/20 and 9/90 1/20 and 27/90 1/60 and 9/90 5/20 and 9/90 1/20 and 45/90 7/20 and 9/90 1/20 and 63/90