Compare 48/18 and 21/10
1st number: 2 12/18, 2nd number: 2 1/10
48/18 is greater than 21/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
48/18 = 48 × 5/18 × 5 = 240/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
21/10 = 21 × 9/10 × 9 = 189/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 240/90 > 189/90 or 48/18 > 21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/18 and 21/10 48/18 and 42/10 48/36 and 21/10 48/18 and 21/20 48/18 and 63/10 48/54 and 21/10 48/18 and 21/30 48/90 and 21/10 48/18 and 21/50 48/18 and 21/70