Compare 98/90 and 24/21
1st number: 1 8/90, 2nd number: 1 3/21
98/90 is smaller than 24/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 21 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
98/90 = 98 × 7/90 × 7 = 686/630 - Likewise, for the 2nd fraction, since 21 × 30 = 630,
24/21 = 24 × 30/21 × 30 = 720/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 686/630 < 720/630 or 98/90 < 24/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/90 and 48/21 98/90 and 24/42 98/90 and 72/21 98/90 and 24/63