Compare 1/42 and 15/90
1/42 is smaller than 15/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
1/42 = 1 × 15/42 × 15 = 15/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
15/90 = 15 × 7/90 × 7 = 105/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/630 < 105/630 or 1/42 < 15/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42 and 15/90 1/42 and 30/90 1/84 and 15/90 3/42 and 15/90 1/42 and 45/90 5/42 and 15/90 1/42 and 75/90 7/42 and 15/90