Compare 21/18 and 16/63
1st number: 1 3/18, 2nd number: 16/63
21/18 is greater than 16/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
21/18 = 21 × 7/18 × 7 = 147/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
16/63 = 16 × 2/63 × 2 = 32/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/126 > 32/126 or 21/18 > 16/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/18 and 16/63 21/18 and 32/63 21/36 and 16/63 63/18 and 16/63 21/18 and 48/63 21/54 and 16/63 21/18 and 80/63 21/90 and 16/63