Compare 21/10 and 45/63
1st number: 2 1/10, 2nd number: 45/63
21/10 is greater than 45/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 10 × 63 = 630,
21/10 = 21 × 63/10 × 63 = 1323/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
45/63 = 45 × 10/63 × 10 = 450/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1323/630 > 450/630 or 21/10 > 45/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10 and 45/63 21/10 and 90/63 21/20 and 45/63 63/10 and 45/63 21/30 and 45/63 21/50 and 45/63 21/70 and 45/63