Compare 7/63 and 21/45
7/63 is smaller than 21/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
7/63 = 7 × 5/63 × 5 = 35/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
21/45 = 21 × 7/45 × 7 = 147/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 35/315 < 147/315 or 7/63 < 21/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/63 and 21/45 7/63 and 42/45 7/63 and 21/90 21/63 and 21/45 7/63 and 63/45 35/63 and 21/45 49/63 and 21/45