Compare 50/42 and 90/15
1st number: 1 8/42, 2nd number: 6 0/15
50/42 is smaller than 90/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
50/42 = 50 × 5/42 × 5 = 250/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
90/15 = 90 × 14/15 × 14 = 1260/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 250/210 < 1260/210 or 50/42 < 90/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84 and 90/15 50/42 and 90/30 50/42 and 90/45 50/42 and 90/75