Compare 21/63 and 2/20
21/63 is greater than 2/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
21/63 = 21 × 20/63 × 20 = 420/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
2/20 = 2 × 63/20 × 63 = 126/1260 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 420/1260 > 126/1260 or 21/63 > 2/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/63 and 2/20 21/63 and 4/20 21/63 and 2/40 21/63 and 6/20 21/63 and 2/60 21/63 and 10/20 21/63 and 14/20