Compare 90/8 and 21/10
1st number: 11 2/8, 2nd number: 2 1/10
90/8 is greater than 21/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
90/8 = 90 × 5/8 × 5 = 450/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
21/10 = 21 × 4/10 × 4 = 84/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 450/40 > 84/40 or 90/8 > 21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8 and 42/10 90/16 and 21/10 90/8 and 21/20 90/8 and 63/10 90/24 and 21/10 90/8 and 21/30 90/40 and 21/10 90/8 and 21/50 90/56 and 21/10 90/8 and 21/70