Compare 21/90 and 10/24
21/90 is smaller than 10/24
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
21/90 = 21 × 4/90 × 4 = 84/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
10/24 = 10 × 15/24 × 15 = 150/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/360 < 150/360 or 21/90 < 10/24
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 10/24 21/90 and 20/24 21/90 and 10/48 63/90 and 10/24 21/90 and 30/24 21/90 and 10/72 21/90 and 50/24 21/90 and 70/24