Compare 21/90 and 6/54
21/90 is greater than 6/54
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
21/90 = 21 × 3/90 × 3 = 63/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
6/54 = 6 × 5/54 × 5 = 30/270 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 63/270 > 30/270 or 21/90 > 6/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/90 and 6/54 21/90 and 12/54 63/90 and 6/54 21/90 and 18/54 21/90 and 30/54 21/90 and 42/54