Compare 9/42 and 45/18
1st number: 9/42, 2nd number: 2 9/18
9/42 is smaller than 45/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
9/42 = 9 × 3/42 × 3 = 27/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
45/18 = 45 × 7/18 × 7 = 315/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 27/126 < 315/126 or 9/42 < 45/18
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 45/18 9/42 and 90/18 9/84 and 45/18 9/42 and 45/36 27/42 and 45/18 9/42 and 45/54 45/42 and 45/18 9/42 and 45/90 63/42 and 45/18