Compare 9/42 and 9/15
9/42 is smaller than 9/15
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,
9/42 = 9 × 5/42 × 5 = 45/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
9/15 = 9 × 14/15 × 14 = 126/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 45/210 < 126/210 or 9/42 < 9/15
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 9/15 9/42 and 18/15 9/84 and 9/15 9/42 and 9/30 27/42 and 9/15 9/42 and 27/15 9/42 and 9/45 45/42 and 9/15 9/42 and 45/15 9/42 and 9/75 63/42 and 9/15 9/42 and 63/15