Compare 15/40 and 5/20
15/40 is greater than 5/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
15/40 = 15 × 1/40 × 1 = 15/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
5/20 = 5 × 2/20 × 2 = 10/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/40 > 10/40 or 15/40 > 5/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/40 and 5/20 15/40 and 10/20 15/80 and 5/20 15/40 and 5/40 45/40 and 5/20 15/40 and 15/20 15/40 and 5/60 75/40 and 5/20 15/40 and 25/20 15/40 and 35/20