Compare 5/42 and 90/18
1st number: 5/42, 2nd number: 5 0/18
5/42 is smaller than 90/18
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,
5/42 = 5 × 3/42 × 3 = 15/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
90/18 = 90 × 7/18 × 7 = 630/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/126 < 630/126 or 5/42 < 90/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/42 and 90/18 5/84 and 90/18 5/42 and 90/36 15/42 and 90/18 5/42 and 90/54 25/42 and 90/18 35/42 and 90/18