Compare 9/42 and 75/20
1st number: 9/42, 2nd number: 3 15/20
9/42 is smaller than 75/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
9/42 = 9 × 10/42 × 10 = 90/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
75/20 = 75 × 21/20 × 21 = 1575/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/420 < 1575/420 or 9/42 < 75/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42 and 75/20 9/84 and 75/20 9/42 and 75/40 27/42 and 75/20 9/42 and 75/60 45/42 and 75/20 63/42 and 75/20