Compare 5/20 and 5/42
5/20 is greater than 5/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
5/20 = 5 × 21/20 × 21 = 105/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
5/42 = 5 × 10/42 × 10 = 50/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 105/420 > 50/420 or 5/20 > 5/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20 and 5/42 5/20 and 10/42 5/40 and 5/42 5/20 and 5/84 15/20 and 5/42 5/20 and 15/42 5/60 and 5/42 25/20 and 5/42 5/20 and 25/42 35/20 and 5/42 5/20 and 35/42