Compare 4/5 and 21/63
4/5 is greater than 21/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 5 × 63 = 315,
4/5 = 4 × 63/5 × 63 = 252/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
21/63 = 21 × 5/63 × 5 = 105/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 252/315 > 105/315 or 4/5 > 21/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5 and 21/63 4/5 and 42/63 4/10 and 21/63 12/5 and 21/63 4/15 and 21/63 20/5 and 21/63 4/25 and 21/63 28/5 and 21/63 4/35 and 21/63