Compare 63/45 and 63/42
1st number: 1 18/45, 2nd number: 1 21/42
63/45 is smaller than 63/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
63/45 = 63 × 14/45 × 14 = 882/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
63/42 = 63 × 15/42 × 15 = 945/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 882/630 < 945/630 or 63/45 < 63/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/90 and 63/42 63/45 and 63/84